GRE Exam Numerical Ability Number System

When positive integer n is divided by 3, the remainder is 2. When n is divided by 7, the remainder is 5. How many values less than 100 can n take? (A) 0 (B) 2 (C) 3 (D) 4 (E) 5

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GRE Other Question

Find which quantity is greater
(a+b)² = 34
ab/2 =6
Quantity A: a²+b²
Quantity B: 11

A) Quantity B is greater
B) The relationship cannot be determined.
C) Quantity A is greater
D) The two quantities are equal. What is the probability that a two digit number chosen at random will be a multiple of 3 and not of 5? (A) 1/3 (B) 2/15 (C) 4/15 (D) 2/9 (E) 8/15