Question

The average of X, Y and the Z is 22 more than the average of Y, Z and W. Find the difference between X and W?
1. 44
2. 88
3. 22
4. 66

Answer 1

Correct Answer - Option 4 : 66

GIVEN:

The average of X, Y and the Z = 22 more than the average of Y, Z and W.

FORMULA USED:

Average = Sum of numbers/Total numbers

CALCULATION:

According to the question:

(X + Y + Z)/3 = (Y + Z + W)/3 + 22

⇒ X + Y + Z = Y + Z + W + 66

⇒ X = W + 66

⇒ X - W = 66