A set of 10 questions similar to GRE quantitative comparison reasoning questions , with solutions and explanations are presented.
When solving quantitative comparison questions, you asked to compare two quantities – Quantity A and Quantity B – and then determine which of the following statements describes the comparison:
(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.

Quantity A 
Quantity B 
2(3 + 4)^{2} + 10

2 + (3 + 4)^{2} + 10


Quantity A 
Quantity B 
2×3^{10} + 2×3^{10} + 2×3^{10}

3×3^{10}


Quantity A 
Quantity B 
25% of 300  Three quarters of 200 

ABC is a triangle such that the measure of angle A is 45°. The measure of angle C is twice the measure of angle B.
Quantity A 
Quantity B 
The measure of angle A  The measure of angle B 

x is a variable that may take any real value.
Quantity A 
Quantity B 
x^{2} + 1
 100x + 1 

Quantity A 
Quantity B 
Area of rectangle of perimeter 240.  Area of square of perimeter 240 

x =  10^{2}
Quantity A 
Quantity B 
x^{3}

x^{2}


Quantity A 
Quantity B 
The volume of a cylindrical tube of radius 1 cm and a length of 100 m 
The Volume of a cylindrical container of radius 10 cm and a length of 10 m 

0 < x < 1
Quantity A 
Quantity B 
1 / x^{2}

1 / x 

A bag contains green, blue and yellow balls. The ratio of green to blue balls is 2:7. The ratio of green to yellow balls is 3:5.
Quantity A 
Quantity B 
Number of blue balls 
Number of yellow balls 