GRE Exam Numerical Ability Number System

If an integer is divisible by both 8 and 15, then the integer also must be divisible by which of the following?
(A) 16
(B) 24
(C) 32
(D) 36
(E) 45

Read Solution (Total 1)

(B) 24

Integer must be multiple of 8*15=120, So among the given options 120 is divisible by 24 only.
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GRE Other Question

A certain experiment has three possible outcomes. The outcomes are mutually exclusive and have probabilities p, p/2 and p/4 respectively. What is the value of p ?
(A) 1/7
(B) 2/7
(C) 3/7
(D) 4/7
(E) 5/7 Of the 180 judges appointed by a certain President, 30 percent were women and 25 percent were from minority groups. If 1/9 of the women appointed were from minority groups, how many of the judges appointed were neither women nor from minority groups?
(A) 75
(B) 81
(C) 87
(D) 93
(E) 99