- Hi friends,I had appealed to the group earlier too with the same question but unfortunately did not get any response. I am in a desperate need of shortcuts in DI.i.e. when I get 16537/2763 ..it seem to take ages for me to get to the answer.I feel that this is faced by many..so I would really appreciate the techniques that can be shared here.Thanks and Best Regards,Prashanth Bhargav.
- hey dude!

prasanth this is in response to ur query on

calculating faster. hope it helps.

the idea is to take approx.

e.g. ur problem 16537/2763

step 1: 16537/2763 > 16537/3000

step 2: 16537/3000 = 5.51233

step 3: now since we increased the denom by 237, i.e

237/2763 = 8% (approx) {simply div 237 by 28 (taking

approx)}

step 4: now just add 8% of the result in step 2 to

itself. therefore 8% of 5.51233= .055 x 8 (approx) =

.440

therefore our final result becomes 5.51233 + .440 =

5.95233 (approx)

step 4: just cool it buddy. don't worry that we took

approx so many times. our result would not be a lot

different from the accurate. AND remember u will have

choices in the paper so choose the nearest to the

result in this manner. and ur result will be 99%

correct (not approx)

good luck

Arun

--- Prashanth S <prashanths@...> wrote:> Hi friends,

=====

> I had appealed to the group earlier too with the

> same question but unfortunately did not get any

> response. I am in a desperate need of shortcuts in

> DI.i.e. when I get 16537/2763 ..it seem to take ages

> for me to get to the answer.

>

> I feel that this is faced by many..so I would really

> appreciate the techniques that can be shared here.

>

> Thanks and Best Regards,

> Prashanth Bhargav.

sare jahan se acha hindustan hamara

"JAI HIND"

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http://sitebuilder.yahoo.com - Hi group,

this one is straight from CAT 2001,plz help me to

solve it.

A certain city has a circular wall around it,and this

wall has four gates pointing north,south,east and

west. A house stands outside the city, three kms north

of the north gate, and it can just be seen from a

point nine kms east of the south gate. What is the

diameter of the wall that surrounds the city?

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The New Yahoo! Search - Faster. Easier. Bingo.

http://search.yahoo.com - dear tejas,

the answer is 9km.

if you solve it traditionally you will land up in an

equation of fourth degree which is highly time

consuming to solve. here is the trick to solve

quickly.

from the question it is clear that there is a right

angled triangle with sides 9 and 3+2r containing the

right angle.

hence value of 3+ 2r can be 12 or 40 .

if try with these two values you will find that 12 is

the correct value of 3+2r.

hence r = 4.5 km or d = 9 km.

bhakta

--- Tejas Mehta <devdas83@...> wrote:> Hi group,

__________________________________

> this one is straight from CAT 2001,plz help me to

> solve it.

>

> A certain city has a circular wall around it,and

> this

> wall has four gates pointing north,south,east and

> west. A house stands outside the city, three kms

> north

> of the north gate, and it can just be seen from a

> point nine kms east of the south gate. What is the

> diameter of the wall that surrounds the city?

>

> __________________________________

> Do you Yahoo!?

> The New Yahoo! Search - Faster. Easier. Bingo.

> http://search.yahoo.com

>

>

Do you Yahoo!?

Yahoo! SiteBuilder - Free, easy-to-use web site design software

http://sitebuilder.yahoo.com