Question

Make a list of 4 different numbers whose average works up to 50

Answer 1

Answer is numbers 10, 30, 70, 90

The 4 numbers must be different and added up and divided by 4 must equal 50.

Four such numbers are 10, 30, 70, 90

We all know that Average = Sum / total of numbers in sum

Addition of these different 4 numbers = 200.
Average = 200 / 4 = 50, the required average.
Problem solved!