Find the missing number to make the average correct. The average of 11, 17, 18, and ? is 17.

Question

asked May 11, 2021 127k views

1 Answer

Thomas Lielacher · Answer 1 · 2021-05-18T04:03:53+0000

Answer:

The missing number is:

22

Explanation:

There are 3 numbers and one more

4 numbers and your average is 17

then:

17*4 = 68

then:

11 + 17 + 18 + a = 68

46 + a = 68

a = 68 - 46

a = 22

Check:

(22 + 11 + 17 + 18)/4 = 17

68/4 = 17