• Ankita

MemberOct 12, 2011

## New GRE Tough Quantitative Questions With Solutions

Sequence S is such that Sn = Sn - 1 + 3/2, and S1 = 2

Sequence A is such that An = An - 1 - 1.5, and A1 = 18.5

A. The sum of the terms in S from S1 to S13, inclusive

B. The sum of the terms in A from A1 to A13, inclusive

A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given
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Replies
• AdministratorOct 12, 2011

A. |x – 5| – |a – b|

B. |b – a| – |5 – x|

Compare Quantity A and Quantity B using the information given above, and select one of the following answer choices:
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
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• AdministratorOct 12, 2011

Cape Cod Cookies makes cookies of identical size from batches of cookie dough weighing 600 ounces. Cape Cod Cookies decides to modify the recipe by decreasing the weight of each cookie by 1 ounce. If Cape Cod Cookies discovers that it is now able to make 30 more cookies using the same batch of dough weighing 600 ounces, how much did each cookie originally weigh?

A.) 2
B.) 3
C.) 4
D.) 5
E.) 6
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• AdministratorOct 12, 2011

A survey was sent to 80 customers, 7 of whom responded. Then the survey was redesigned and sent to another 63 customers, 9 of whom responded. By approximately what percent did the response rate increase from the original survey to the redesigned survey?

A.) 2%
B.) 5%
C.) 14%
D.) 28%
E.) 63%
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• MemberOct 13, 2011

1) A

The first series has all positive terms. In the second series, from around 8th term, the terms become negative. So, the earlier positive term are effectively cancelled out. I didnt work it out fully, though..

2) B

A is always negative and B is always positive.

3) D

4) B
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• MemberNov 15, 2011

1)a 2)b 3)d 4)b
can some1 pls explain me the 2nd question
if the number line divided between a and 10 are all equal in length then da answer b is correct
but in the question it is not mentioned anywhere dat they are equal
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• MemberNov 15, 2011

^^ It's not necessary that they are equal.

As I mentioned above, quantity A turns out to be always negative, and quantity B is always positive. So, B is always greater.

You can probably check it.. I'll only explain the trivial case, probably..

A is |x-5| - |a-b|, and
B is |b-a| - |5-x|

a is negative. Assume some small value to it, say -1
b is between 5 and 10 ==> assume 6
x is between b and 10 ==> assume 7

Now, quantity A is |7-5| - |-1-6| = |2| - |-7| = 2-7 = -5
quantity B is |6-(-1)| - |5-7| = 7-2 = 5

You can try other values.. But whatever the values, A will be negative and B will be positive.
Hence the answer.. 😀
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• MemberNov 18, 2011

hey pls post some new quants questions ....
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