Question

Three of four numbers have a sum of 22. If the average of the four numbers is 8, what is the fourth number? a) 4 b) 6 c) 8 d) 10

Answer 1

Answer:

10

Step-by-step explanation:

First you do 8 × 4, this gives the total of the four numbers.

$8 \times 4 = 32$

Then, subtract the total of 3 of the numbers from the total of 4 of the numbers.

$32 - 22 = 10$