Data Sufficiency • Parity Practice Questions - GMAT Focus Edition

Question 1

Is the integer n odd?

(1) n² − 1 is an even integer.
(2) 2n is an even integer.

Accepted Answer

A) Statement (1) ALONE is sufficient, but (2) alone is not

Answer

B) Statement (2) ALONE is sufficient, but (1) alone is not

Answer

C) BOTH statements TOGETHER are sufficient

Answer

D) Statements (1) and (2) TOGETHER are NOT sufficient

Question 2

If n is a positive integer, what is the remainder when (7¹² + 3) is divided by 7?

Accepted Answer

C) 3

Answer

A) 0

Answer

B) 1

Answer

D) 4

Question 3

Machine A produces 120 parts per hour. Machine B produces 180 parts per hour. Both machines work to complete an order of 900 parts. If Machine A works for 3 hours, how many hours must Machine B work to complete the remaining order?

Accepted Answer

A) 3.0 hours

Answer

B) 2.5 hours

Answer

C) 3.5 hours

Answer

D) 4.0 hours