gre quant aug 17

1 Which of the following integers equals the product of two prime numbers?
(A) 19
(B) 27
(C) 30
(D) 41
(E) 58 e

2 What is the smallest positive integer by which 126 can be multiplied so that the product is the square of an integer?
(A) 4
(B) 7
(C) 9
(D) 14
(E) 126 d

3 The sum of three consecutive odd integers, x, y, and z , in ascending order, is 39. What is the sum of the three consecutive odd integers that immediately follow z ?
(A) 78
(B) 57
(C) 48
(D) 45
(E) 42 b

4 If the average (arithmetic mean) of x, y, and z is an even integer, then x + y + z could
be
(A) 15
(B) 16
(C) 18
(D) 20
(E) 21 c

5 For how many of the integers from 10 to 99 is at least one of the two digits a 4?
(A) 9
(B) 10
(C) 18
(D) 19
(E) 20 c

6 If the average (arithmetic mean) of a,b, and c is 40, what is the average (arithmetic
mean) of (3a + 10), (3b + 10) , and (3c + 10) ?
(A) 50
(B) 70
(C) 130
(D) 150
(E) It cannot be determined from the information given. C