6
Q:

# If the sum and diference of two numbers are 20 and 8 respectively, then the difference of their squares is :

 A) 120 B) 140 C) 160 D) 180

Explanation:

Let the numbers be x and y. Then, x + y = 20 and x - y = 8.

x^2 - y^2 = (x + y) (x - y) = 20 x 8 = 160.

Q:

What is the value of x so that the seven digit number 5656x52 is divisible by 72?

 A) 8 B) 4 C) 5 D) 7

Explanation:

0 39
Q:

What should replace * in the number 94*2357, so that number is divisible by 11?

 A) 1 B) 7 C) 8 D) 3

Explanation:

0 166
Q:

When 200 is divided by a positive integer x , the remainder is 8. How many values of x are there?

 A) 7 B) 5 C) 8 D) 6

Explanation:

0 341
Q:

If the number 1005x4 is completely divisible by 8, then the smallest integer in place of x will be:

 A) 0 B) 1 C) 4 D) 2

Explanation:

0 117
Q:

When 200 is divided by a positive integer x , the remainder is 8. How many values of x are there?

 A) 7 B) 5 C) 8 D) 6

Explanation:

0 209
Q:

When an integer n is divided by 8, the remainder is 3. What will be the remainder if 6n-1 is divided by 8 ?

 A) 2 B) 0 C) 4 D) 1

Explanation:

0 170
Q:

The average of 27 numbers is zero. Out of them, how many maybe greater than zero, at the most?

 A) 0 B) 26 C) 20 D) 15

Explanation:

1 661
Q:

If 85% of a number is added to 75, then the result is the number itself. The number is:

 A) 500 B) 200 C) 100 D) 300