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GRE Sample Questions » Quantitative Section : Quantitative Comparision

# Quantitative Section : Quantitative Comparision

Given below are two different quantities with some or no relation between them. A student has to identify it and determine the relation accordingly.

1. Quantity 1: (-6)8
Quantity 2: (-4) 2

1. Quantity 1 is greater than Quantity 2
2. Quantity 2 is greater than Quantity 1
3. Both the quantities are equal
4. There is no relationship between the two quantities

Ans : A

Explanation:
(-6) 8 = -48 while (-4) 2= -16,
Therefore (a) is the right answer

2. In triangle PQR, PQ is 3 cm, PR is (13) 1/2cm and QR is 2 cm.
1: angle PQR is 60°
2: angle PRQ is x

1. 1 is greater than 2
2. 2 is greater than 1
3. 1 and 2 are equal
4. There is no relation between 1 and 2

Ans : B

Explanation:
Using Pythagoras theorem, measure of angle PRQ comes to 90°.
Therefore (b) is the right answer.

3. Sum of 4 consecutive numbers is 16
A: 4
B: they are average

1. There is no relation between A and B
2. A and B are equal
3. B is greater than A
4. A is greater than B

Ans : B

Explanation:
The average of a set of numbers can be found out by dividing the sum total by the number of numbers. Hence irrespective of the individual numbers their average is always going to be 4

4. a2 + b2 = (12) 2 and ab = 27
Quantity 1: a2 + 2ab+ b2
Quantity 2: (a + b) 2

1. Quantity 2 is greater than quantity 1
2. There is no relation between both the quantities
3. Quantity 1 is equal to quantity 2
4. Quantity 1 is greater than quantity 2

Ans : C

Explanation:
(a + b) 2 = a2 + 2ab+ b2,
Therefore option (c) is the right answer

5. Quantity 1 = (x + 3) 3
Quantity 2 = (x – 3) 3

1. Quantity 1 is greater than quantity 2
2. Quantity 2 is greater than quantity 1
3. Both the quantities are equal
4. No relation between the 2 quantities

Ans : D

Explanation:
In case of quantity 1, addition is done; while in case of quantity 2, subtraction is done, therefore no relation.

6. a < 2 and b > 2
Quantity 1: ba
Quantity 2: ab

1. Both the quantities are equal
2. 1 is less than 2
3. 2 is less than 1
4. No relation

Ans : A

Explanation:
ab = ba, therefore (a) is the right answer.

7. 10 > a < 30, while 22 > b < 56
Quantity 1: a
Quantity 2: b

1. Value of quantity 2 is more than value of quantity 1
2. Value of quantity 1 is more than value of quantity 2
3. Values of both quantity 1 and 2 are equal
4. There is no relation between the 2 quantities

Ans : D

Explanation:
As quantity 1 can be any number between 10 and 30, and quantity 2 can be any number between 22 and 56, option (d) is the right answer

8. x is a negative integer
5/10 = x/y
Quantity 1: x/y
Quantity 2: 2

1. Quantity 2 is less than quantity 1
2. Quantity 1 is less than quantity 2
3. Quantity 1 is equal to quantity 2
4. No relation

Ans : D

Explanation:
5/10 = x/y
1/2 = x/y
Therefore there is no relation between 1 and 2

9. Quantity A: (1/501/2 + (1/1082)1/2
Quantity B: (1/50) + (1/32)

1. Quantity A is smaller than quantity B
2. There is no relation between both the quantities
3. Quantity B is smaller than quantity A
4. Quantity A = quantity B

Ans : B

Explanation:
Quantity A is the square roots of both the quantities and then division, where as quantity B is just division, hence no relation.

10. a + b = 12
Quantity 1: 12
Quantity 2: a – b

1. Quantity 1 is equal to quantity 2
2. Quantity 2 is greater than quantity 1
3. No relation
4. Quantity 1 is greater than quantity 2

Ans : C

Explanation:
As quantity 1 is 12 = a + b and quantity 2 is a – b, option (c) is the right answer

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GRE Sample Quantitative Ability Question Number : 1-10 | 11-20 | 21-30 | 31-40 | 41-50 | 51-60
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