Question

Write down 3 integers, all less than 25 whose range is 8 and mean is 11.

Answer 1

a=3, b=13, c=23.

Explanation:

Let a,b ,c be an integer numbers such that each is less than 25, their mean is 13 and range - 10.

1. Let a<b<c<25;

2. {a+b+c}{3} =13 \\ a+b+c=39

3. c-b=b-a=10.

Then

c=10+b \\ a=b-10 \\ b-10+b+10+b=39 \\ b=13, c=23, a=3.