GRE - Graduate Record Examinations Arithmetic and Number Properties Questions and Answers

Question 1

When the positive integer 'n' is divided by 8, the remainder is 5. What is the remainder when 5n is divided by 8?

Accepted Answer

1

Answer

0

Answer

3

Answer

5

Question 2

If 'a' is an odd integer and 'b' is an even integer, which of the following expressions must be an even integer?

Accepted Answer

a + b + 1

Answer

ab + 1

Answer

a - b

Answer

3a + b

Question 3

What is the units digit of 13^123?

Accepted Answer

7

Answer

1

Answer

9

Answer

3

Question 4

The sum of 7 consecutive odd integers is 119. What is the value of the greatest of these integers?

Accepted Answer

23

Answer

17

Answer

19

Answer

21

Question 5

The number N is equal to 2^4 * 3^2 * 7^1. How many distinct positive factors does N have?

Accepted Answer

30

Answer

7

Answer

14

Answer

24

Question 6

The product of two positive integers, x and y, is 240. If the ratio of x to y is 3 to 5, what is the value of x + y?

Accepted Answer

32

Answer

12

Answer

20

Answer

40

When the positive integer 'n' is divided by 8, the remainder is 5.What is the remainder when 5n is divided by 8?