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• 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
Message 1 of 4 , Aug 18, 2003
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:
Message 2 of 4 , Aug 28, 2003
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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• 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
Message 3 of 4 , Aug 29, 2003
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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• 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
Message 4 of 4 , Sep 3, 2003
dear tejas,

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
>
>

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