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by pratyoosh » Sat Nov 13, 2010 10:20 am
Hello,

Can anyone Opine on the below DS question:


1. For the students in class A, the range of heights is r centimeters and the greatest height is g centimeters. For the students in class B, the range of heights is s centimeters and the greatest height is h centimeters. Is the least height of the students in class A greater than the least height of the students in class B?
a. R < s
b. G > h


Thanks.
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by selango » Sat Nov 13, 2010 10:27 am
Please post this in DS section
--Anand--
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by pratyoosh » Sat Nov 13, 2010 10:28 am
Ok.
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by PraveenKumar.Rajan » Wed Mar 23, 2011 9:49 pm
Both a & b together answers the queestion.
So answer choice should be D.

First consider (a),from range alone we could not come to a conclusion.
Then consider (b),from largest value we could not determine the least value.

When we take (a) & (b) together

First consider (b) which says G>H

Let G be 100 & H be 99 which is the maximum number that H can hold to meet G>H

Now consider (b) which says the range of A is smaller than that of B,R<S

Let S be 10 and R be 9 which meets R<S


So,least value for A is (100 - 9) which is 91
least value for B is (99 -10) which is 89

Thus, least value of A is always greater than the least value of B.
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by srcc25anu » Wed Mar 23, 2011 10:14 pm
You got the qustion right ... just be careful with the choices. when both statements are sufficient, its C
PraveenKumar.Rajan wrote:Both a & b together answers the queestion.
So answer choice should be D.

First consider (a),from range alone we could not come to a conclusion.
Then consider (b),from largest value we could not determine the least value.

When we take (a) & (b) together

First consider (b) which says G>H

Let G be 100 & H be 99 which is the maximum number that H can hold to meet G>H

Now consider (b) which says the range of A is smaller than that of B,R<S

Let S be 10 and R be 9 which meets R<S


So,least value for A is (100 - 9) which is 91
least value for B is (99 -10) which is 89

Thus, least value of A is always greater than the least value of B.
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by force5 » Wed Mar 23, 2011 11:42 pm
IMO E

what is the OA??
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by selango » Thu Mar 24, 2011 12:44 am
Class A
--------------
g-LA=r

Class B
-------------
h-LB=s

Is LA>LB?

stmt1,

r<s

g-LA<h-LB

We dont know any info abt LA and LB.

Insuff

stmt2,

g>h


r+LA>s+LB

We still don't know any info abt LA and LB.

Combining 1 and 2,

r<s or-r>-s

g>h

-->g-r>h-s

LA>LB

Suff

Pick C
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