## Re: [2IIM CAT Prep] Help me out Guys!! (percentages)

Expand Messages
• 96% change (5x-x/5)/(5x) Warm Regards, J Sree Harsha ________________________________ From: the boss To: ascent4cat@yahoogroups.com
Message 1 of 17 , Mar 2, 2010
• 0 Attachment
96% change

(5x-x/5)/(5x)

Warm Regards,
J Sree Harsha

From: the boss <keerthi_indya@...>
To: ascent4cat@yahoogroups.com
Sent: Tue, 2 March, 2010 2:49:56 PM
Subject: [2IIM CAT Prep] Help me out Guys!! (percentages)

 Hi all,       1.A number is mistakenly divided by 5 instead of multiplied by 5.Find the percentagechange in result due to this mistake?how to calculate the percentage change from the mistaken result or the expected result?..gimme some ideas on this kind of sums.thank u in advanceRegards,keerthivasan

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.
• This is wrong solution, & Solution provided by chayank is correct , he is asking for % change in results. On Wed, Mar 3, 2010 at 9:46 PM, Smita Dutta Chowdhury
Message 2 of 17 , Mar 4, 2010
• 0 Attachment
This is wrong solution, & Solution provided by chayank is correct , he is asking for % change in results.

On Wed, Mar 3, 2010 at 9:46 PM, Smita Dutta Chowdhury wrote:

hey i think it wil go as follows:
let the no be x

(5x- x/5)/x*100
= (25x-x)/x*100
= 2400

thereis another way of doing it too.

let the no. be 100.
as the no. shud be multiplied by 5 so 500
but divide dby mistake so 20

therefore
((500-20)/20)*100
2400

hope am right if not please send the correct solution

Sent: Tue, 2 March, 2010 2:49:56 PM

Subject: [2IIM CAT Prep] Help me out Guys!! (percentages)

 Hi all,       1.A number is mistakenly divided by 5 instead of multiplied by 5.Find the percentagechange in result due to this mistake? how to calculate the percentage change from the mistaken result or the expected result?..gimme some ideas on this kind of sums.thank u in advanceRegards,keerthivasan

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.

--
Thanks & Regards
Anand Pal
Alcatel-Lucent, Gurgoan
+919990255835
"Laugh so hard that even sorrow smiles at you, Live life so well that even death loves to see you live, Fight so hard that even fate accepts its defeat."
• as many of u said ...96%change is correct according to me....consider the no.to be 5 itselfso...if it is multiplied by 5 the result is 25....n if it is divided
Message 3 of 17 , Mar 4, 2010
• 0 Attachment
 as many of u said ...96%change is correct according to me....consider the no.to be 5 itselfso...if it is multiplied by 5 the result is 25....n if it is divided by 5 mistakenly....then the ans would b 1....sodue to that mistake...a change of(100/25)*24==96 which is the correct answer....bt cat is language based so the options should b read carefully...n i believe every problem in cat should  b solved nly after takin a luk at the options....

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.
• @ smitha is right accordin to me.   It is the % change  that we hav to find.   So the answer for that is 2400 %,accordin to me. ... From: Anand Pal
Message 4 of 17 , Mar 6, 2010
• 0 Attachment
@ smitha is right accordin to me.

It is the % change  that we hav to find.

So the answer for that is 2400 %,accordin to me.

--- On Thu, 4/3/10, Anand Pal (Alcatel-Lucent) <varshneyinfo@...> wrote:

From: Anand Pal (Alcatel-Lucent) <varshneyinfo@...>
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
To: ascent4cat@yahoogroups.com
Date: Thursday, 4 March, 2010, 4:46 PM

This is wrong solution, & Solution provided by chayank is correct , he is asking for % change in results.

On Wed, Mar 3, 2010 at 9:46 PM, Smita Dutta Chowdhury wrote:

hey i think it wil go as follows:
let the no be x

(5x- x/5)/x*100
= (25x-x)/x*100
= 2400

thereis another way of doing it too.

let the no. be 100.
as the no. shud be multiplied by 5 so 500
but divide dby mistake so 20

therefore
((500-20)/20) *100
2400

hope am right if not please send the correct solution

Sent: Tue, 2 March, 2010 2:49:56 PM

Subject: [2IIM CAT Prep] Help me out Guys!! (percentages)

 Hi all,       1.A number is mistakenly divided by 5 instead of multiplied by 5.Find the percentagechange in result due to this mistake?how to calculate the percentage change from the mistaken result or the expected result?..gimme some ideas on this kind of sums.thank u in advanceRegards,keerthivasan

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.

--
Thanks & Regards
Anand Pal
Alcatel-Lucent, Gurgoan
+919990255835
"Laugh so hard that even sorrow smiles at you, Live life so well that even death loves to see you live, Fight so hard that even fate accepts its defeat."

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.
• sorry i wrote wrong ans 1st, although i had gt it 1st Acordin ot me it is 480 %.   I feel the solution is this way   Let th no b x.   = % change after
Message 5 of 17 , Mar 6, 2010
• 0 Attachment
sorry i wrote wrong ans 1st, although i had gt it 1st
Acordin ot me it is 480 %.

I feel the solution is this way

Let th no b x.

=> % change after multiplyin by 5 = (5x-x)*100/x
=> % change aftr dividin by 5 = (x-(x/5))*100/x

=> total change = (5x-x+x-(x/5))*100/x
= 480

i hav tried d soln fr nos 20 n 30. n both satisy d ans.

So i feel the ans is this.

regards
Ambarish

--- On Wed, 3/3/10, chayank agrawal <chayankag@...> wrote:

From: chayank agrawal <chayankag@...>
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
To: ascent4cat@yahoogroups.com
Date: Wednesday, 3 March, 2010, 10:47 PM

Hi
Let the number be 25.
Original resultant should be 25x5= 125
But it is divided by 5
So new no. would be 25/5 = 5

Error = 125-5= 120
% error = (120/125)*100= 96%

From: the boss <keerthi_indya@ yahoo.com>
To: ascent4cat@yahoogro ups.com
Sent: Tue, March 2, 2010 2:49:56 PM
Subject: [2IIM CAT Prep] Help me out Guys!! (percentages)

 Hi all,       1.A number is mistakenly divided by 5 instead of multiplied by 5.Find the percentagechange in result due to this mistake?how to calculate the percentage change from the mistaken result or the expected result?..gimme some ideas on this kind of sums.thank u in advanceRegards,keerthivasan

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.
• hey ans shouwld be 96%.. ifi take 100...teh it will be 20 when divided and 500 when multiplied... so ( (500-20)/500 )* 100 = 96% On Sat, Mar 6, 2010 at 5:30
Message 6 of 17 , Mar 9, 2010
• 0 Attachment

hey ans shouwld be 96%..

ifi take 100...teh it will be 20 when divided and 500 when multiplied...

so ( (500-20)/500 )* 100 = 96%
On Sat, Mar 6, 2010 at 5:30 PM, ambarish kulkarni wrote:

sorry i wrote wrong ans 1st, although i had gt it 1st
Acordin ot me it is 480 %.

I feel the solution is this way

Let th no b x.

=> % change after multiplyin by 5 = (5x-x)*100/x
=> % change aftr dividin by 5 = (x-(x/5))*100/x

=> total change = (5x-x+x-(x/5))*100/x
= 480

i hav tried d soln fr nos 20 n 30. n both satisy d ans.

So i feel the ans is this.

regards
Ambarish

--- On Wed, 3/3/10, chayank agrawal <chayankag@...> wrote:

From: chayank agrawal <chayankag@...>
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
To: ascent4cat@yahoogroups.com
Date: Wednesday, 3 March, 2010, 10:47 PM

Hi
Let the number be 25.
Original resultant should be 25x5= 125
But it is divided by 5
So new no. would be 25/5 = 5

Error = 125-5= 120
% error = (120/125)*100= 96%

From: the boss <keerthi_indya@ yahoo.com>
To: ascent4cat@yahoogro ups.com
Sent: Tue, March 2, 2010 2:49:56 PM
Subject: [2IIM CAT Prep] Help me out Guys!! (percentages)

 Hi all,       1.A number is mistakenly divided by 5 instead of multiplied by 5.Find the percentagechange in result due to this mistake?how to calculate the percentage change from the mistaken result or the expected result?.. gimme some ideas on this kind of sums.thank u in advanceRegards,keerthivasan

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.

• To keerthi can u post the correct answer or atleast the options.   - I feel the % wil b greater than 100 %.   if a number is doubled, then there is change
Message 7 of 17 , Mar 11, 2010
• 0 Attachment
To keerthi
can u post the correct answer or atleast the options.

->I feel the % wil b greater than 100 %.
if a number is doubled, then there is change of 100%.
so here no is being multiplied 5 times ...so cange in % has to b greater than 100 for sure.

ambarish

--- On Wed, 10/3/10, Rahul Bhat <rahulbhat2000@...> wrote:

From: Rahul Bhat <rahulbhat2000@...>
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
To: ascent4cat@yahoogroups.com
Date: Wednesday, 10 March, 2010, 1:07 PM

hey ans shouwld be 96%..

ifi take 100...teh it will be 20 when divided and 500 when multiplied.. .

so ( (500-20)/500 )* 100 = 96%
On Sat, Mar 6, 2010 at 5:30 PM, ambarish kulkarni wrote:

sorry i wrote wrong ans 1st, although i had gt it 1st
Acordin ot me it is 480 %.

I feel the solution is this way

Let th no b x.

=> % change after multiplyin by 5 = (5x-x)*100/x
=> % change aftr dividin by 5 = (x-(x/5))*100/ x

=> total change = (5x-x+x-(x/5) )*100/x
= 480

i hav tried d soln fr nos 20 n 30. n both satisy d ans.

So i feel the ans is this.

regards
Ambarish

--- On Wed, 3/3/10, chayank agrawal <chayankag@yahoo. com> wrote:

From: chayank agrawal <chayankag@yahoo. com>
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
To: ascent4cat@yahoogro ups.com
Date: Wednesday, 3 March, 2010, 10:47 PM

Hi
Let the number be 25.
Original resultant should be 25x5= 125
But it is divided by 5
So new no. would be 25/5 = 5

Error = 125-5= 120
% error = (120/125)*100= 96%

From: the boss <keerthi_indya@ yahoo.com>
To: ascent4cat@yahoogro ups.com
Sent: Tue, March 2, 2010 2:49:56 PM
Subject: [2IIM CAT Prep] Help me out Guys!! (percentages)

 Hi all,       1.A number is mistakenly divided by 5 instead of multiplied by 5.Find the percentagechange in result due to this mistake?how to calculate the percentage change from the mistaken result or the expected result?..gimme some ideas on this kind of sums.thank u in advanceRegards,keerthivasan

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.
• Hi Guys, The Ans would be 96%. For Example take the number as 5. It should have been 5*5 = 25. But mistakenly it was divided by 5, i.e 5/5 = 1. SO 25 have
Message 8 of 17 , Mar 16, 2010
• 0 Attachment
Hi Guys,
The Ans would be 96%.

For Example take the number as 5.

It should have been 5*5 = 25.

But mistakenly it was divided by 5, i.e 5/5 = 1.

SO 25 have become 1 here.

Change in percentage. (original value – changed value/original value)*100.

= (25-1)/25 * 100

= (24/25)*100

= 96 % (change in negative sense) - is percentage change (for 25 to become 1).

Cheers,
Deepan Mahendran.

From: ambarish kulkarni <ambarish_22@...>
To: ascent4cat@yahoogroups.com
Sent: Fri, 12 March, 2010 2:15:04 AM
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)

To keerthi
can u post the correct answer or atleast the options.

->I feel the % wil b greater than 100 %.
if a number is doubled, then there is change of 100%.
so here no is being multiplied 5 times ...so cange in % has to b greater than 100 for sure.

ambarish

--- On Wed, 10/3/10, Rahul Bhat <rahulbhat2000@ gmail.com> wrote:

From: Rahul Bhat <rahulbhat2000@ gmail.com>
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
To: ascent4cat@yahoogro ups.com
Date: Wednesday, 10 March, 2010, 1:07 PM

hey ans shouwld be 96%..

ifi take 100...teh it will be 20 when divided and 500 when multiplied.. .

so ( (500-20)/500 )* 100 = 96%
On Sat, Mar 6, 2010 at 5:30 PM, ambarish kulkarni wrote:

sorry i wrote wrong ans 1st, although i had gt it 1st
Acordin ot me it is 480 %.

I feel the solution is this way

Let th no b x.

=> % change after multiplyin by 5 = (5x-x)*100/x
=> % change aftr dividin by 5 = (x-(x/5))*100/ x

=> total change = (5x-x+x-(x/5) )*100/x
= 480

i hav tried d soln fr nos 20 n 30. n both satisy d ans.

So i feel the ans is this.

regards
Ambarish

--- On Wed, 3/3/10, chayank agrawal <chayankag@yahoo. com> wrote:

From: chayank agrawal <chayankag@yahoo. com>
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
To: ascent4cat@yahoogro ups.com
Date: Wednesday, 3 March, 2010, 10:47 PM

Hi
Let the number be 25.
Original resultant should be 25x5= 125
But it is divided by 5
So new no. would be 25/5 = 5

Error = 125-5= 120
% error = (120/125)*100= 96%

From: the boss <keerthi_indya@ yahoo.com>
To: ascent4cat@yahoogro ups.com
Sent: Tue, March 2, 2010 2:49:56 PM
Subject: [2IIM CAT Prep] Help me out Guys!! (percentages)

 Hi all,       1.A number is mistakenly divided by 5 instead of multiplied by 5.Find the percentagechange in result due to this mistake?how to calculate the percentage change from the mistaken result or the expected result?..gimme some ideas on this kind of sums.thank u in advanceRegards,keerthivasan

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.
• the correct answer is 96%. Suppose the no. is x then actual result (which should come) = 5x and deviated result = x/5 now the formulla of percentage error is :
Message 9 of 17 , Apr 12, 2010
• 0 Attachment
Suppose the no. is x
then actual result (which should come) = 5x
and deviated result = x/5
now the formulla of percentage error is : (Actual value)-(Deviated value) * 100%
(Actual value)

hence answer is = (5x)-(x/5) *100   = (24x/5)  *100  =  24x *100  =  96%.
(5x)                   (5x)                  25x

विषय: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
To: ascent4cat@yahoogroups.com
दिनांक: मंगलवार, 16 मार्च, 2010, 5:08 PM

Hi Guys,
The Ans would be 96%.

For Example take the number as 5.

It should have been 5*5 = 25.

But mistakenly it was divided by 5, i.e 5/5 = 1.

SO 25 have become 1 here.

Change in percentage. (original value – changed value/original value)*100.

= (25-1)/25 * 100

= (24/25)*100

= 96 % (change in negative sense) - is percentage change (for 25 to become 1).

Cheers,
Deepan Mahendran.

From: ambarish kulkarni <ambarish_22@ yahoo.co. in>
To: ascent4cat@yahoogro ups.com
Sent: Fri, 12 March, 2010 2:15:04 AM
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)

To keerthi
can u post the correct answer or atleast the options.

->I feel the % wil b greater than 100 %.
if a number is doubled, then there is change of 100%.
so here no is being multiplied 5 times ...so cange in % has to b greater than 100 for sure.

ambarish

--- On Wed, 10/3/10, Rahul Bhat <rahulbhat2000@ gmail.com> wrote:

From: Rahul Bhat <rahulbhat2000@ gmail.com>
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
To: ascent4cat@yahoogro ups.com
Date: Wednesday, 10 March, 2010, 1:07 PM

hey ans shouwld be 96%..

ifi take 100...teh it will be 20 when divided and 500 when multiplied.. .

so ( (500-20)/500 )* 100 = 96%
On Sat, Mar 6, 2010 at 5:30 PM, ambarish kulkarni wrote:

sorry i wrote wrong ans 1st, although i had gt it 1st
Acordin ot me it is 480 %.

I feel the solution is this way

Let th no b x.

=> % change after multiplyin by 5 = (5x-x)*100/x
=> % change aftr dividin by 5 = (x-(x/5))*100/ x

=> total change = (5x-x+x-(x/5) )*100/x
= 480

i hav tried d soln fr nos 20 n 30. n both satisy d ans.

So i feel the ans is this.

regards
Ambarish

--- On Wed, 3/3/10, chayank agrawal <chayankag@yahoo. com> wrote:

From: chayank agrawal <chayankag@yahoo. com>
Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
To: ascent4cat@yahoogro ups.com
Date: Wednesday, 3 March, 2010, 10:47 PM

Hi
Let the number be 25.
Original resultant should be 25x5= 125
But it is divided by 5
So new no. would be 25/5 = 5

Error = 125-5= 120
% error = (120/125)*100= 96%

From: the boss <keerthi_indya@ yahoo.com>
To: ascent4cat@yahoogro ups.com
Sent: Tue, March 2, 2010 2:49:56 PM
Subject: [2IIM CAT Prep] Help me out Guys!! (percentages)

 Hi all,       1.A number is mistakenly divided by 5 instead of multiplied by 5.Find the percentagechange in result due to this mistake?how to calculate the percentage change from the mistaken result or the expected result?..gimme some ideas on this kind of sums.thank u in advanceRegards,keerthivasan

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.

Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.

• Let me simplify it. Let the number be 20x and due to the mistake mistake committed instead of 100x, 4x was obtained. the percentage change from 100x to 4x,
Message 10 of 17 , May 13, 2010
• 0 Attachment
Let me simplify it.
Let the number be 20x and due to the mistake mistake committed instead of 100x, 4x was obtained. the percentage change from 100x to 4x, should be w.r.t the right answer. so, the change is 96%.

cheers, srinivas
--- In ascent4cat@yahoogroups.com, ambarish kulkarni <ambarish_22@...> wrote:
>
> To keerthi
>
> can u post the correct answer or atleast the options.
> Â
> ->I feel the % wil b greater than 100 %.
> Â Â if a number is doubled, then there is change of 100%.
> so here no is being multiplied 5 times ...so cange in % has to b greater than 100 for sure.
> Â
> ambarish
> Â
>
> --- On Wed, 10/3/10, Rahul Bhat <rahulbhat2000@...> wrote:
>
>
> From: Rahul Bhat <rahulbhat2000@...>
> Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
> To: ascent4cat@yahoogroups.com
> Date: Wednesday, 10 March, 2010, 1:07 PM
>
>
> Â
>
>
>
>
>
> hey ans shouwld be 96%..
> Â
> ifi take 100...teh it will be 20 when divided and 500 when multiplied.. .
> Â
> so ( (500-20)/500 )* 100 = 96%
>
> On Sat, Mar 6, 2010 at 5:30 PM, ambarish kulkarni <ambarish_22@ yahoo.co. in> wrote:
>
>
> Â
>
>
>
>
>
>
>
>
> sorry i wrote wrong ans 1st, although i had gt it 1st
> Acordin ot me it is 480 %.
> Â
> I feel the solution is this way
> Â
> Let th no b x.
> Â
> => % change after multiplyin by 5 = (5x-x)*100/x
> => % change aftr dividin by 5 = (x-(x/5))*100/ x
> Â
> => total change = (5x-x+x-(x/5) )*100/x
> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 480
> Â
> i hav tried d soln fr nos 20 n 30. n both satisy d ans.
> Â
> So i feel the ans is this.
> Â
> regards
> Ambarish
>
> --- On Wed, 3/3/10, chayank agrawal <chayankag@yahoo. com> wrote:
>
>
> From: chayank agrawal <chayankag@yahoo. com>
> Subject: Re: [2IIM CAT Prep] Help me out Guys!! (percentages)
> To: ascent4cat@yahoogro ups.com
> Date: Wednesday, 3 March, 2010, 10:47 PM
>
>
> Â
>
>
>
> Hi
> Let the number be 25.
> Original resultant should be 25x5= 125
> But it is divided by 5
> So new no. would be 25/5 = 5
> Â
> ErrorÂ = 125-5= 120
> % error = (120/125)*100= 96%
>
> Â
>
>
>
>
> From: the boss <keerthi_indya@ yahoo.com>
> To: ascent4cat@yahoogro ups.com
> Sent: Tue, March 2, 2010 2:49:56 PM
> Subject: [2IIM CAT Prep] Help me out Guys!! (percentages)
>
> Â
>
>
>
>
>
> Hi all,
>
> Â Â Â Â Â Â  1.A number is mistakenly divided by 5 instead of multiplied by 5.Find the percentage
> change in result due to this mistake?
> how to calculate the percentage change from the mistaken result or the expected result?..
> gimme some ideas on this kind of sums.thank u in advance
>
> Regards,
> keerthivasan
>
> Â
>
>
>
> The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.
>
>
>
>
> Your Mail works best with the New Yahoo Optimized IE8. Get it NOW!.
>
>
>
>
>
>
>
>
>
>
> The INTERNET now has a personality. YOURS! See your Yahoo! Homepage. http://in.yahoo.com/
>
Your message has been successfully submitted and would be delivered to recipients shortly.