- View Source96% change

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

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 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

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

The INTERNET now has a personality. YOURS! See your Yahoo! Homepage. - View SourceLet 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/

>