GMAT Section 2 Quantitative

GMAT Section 2 Quantitative practice questions, page 4 of 29, with answer review and explanations.

Question 16

X is a prime number bigger than 10. Also, Y = X+X3+X5+X7. What is definitely true about Y?

  1. Y is a prime number.
  2. Y is odd.
  3. Y is even.
  4. Y is divisible by 3.
  5. Y is divisible by 7.

Question 17

What is the least integer that is a sum of four different primes each greater than 20?

  1. 79
  2. 83
  3. 120
  4. 133
  5. 169

Question 18

One quarter of the workers at the factory is clerical, one fifth is technical, half are administrative and the other 25 are managerial. How many workers total are there in the factory?

  1. 250
  2. 366
  3. 400
  4. 500
  5. 2500

Question 19

The price of a product is $a. Bill bought s products and then sold 80 percents of them $b. which of the following represents the whole deal if Bills profit was three times the cost?

  1. 0.8sb = 4sa.
  2. (1-0.8) s –ab = 3s.
  3. 3(0.8a – sb) = sa.
  4. (s-0.8s) (b-a) = 3.
  5. (s0.8s) / (b-a) = 3.

Question 20

A grocer bought 24Kg of coffee beans at price X. After a while one third of the stock got spoiled so he sold the rest for 200$ per Kilo and made a total profit of twice the cost. What must be price X?

  1. 66 2/3$.
  2. 50 1/3$.
  3. 44 4/9$.
  4. 33 1/3$.
  5. 24 1/2$.