Question

Write down three integers, all less than 25, whose: • range is 10 and • mean is 13

Answer 1

Answer: Our required integers will be 9,11,19.

Explanation:

Let three integers all less than 25 be x,y,z

Since we have given that

Range = 10

Mean = 13

These three integers will be

$9,11,19$

Since their range is 10 i.e.

$Range=Highest-Lowest=19-9=10$

And

Mean = 13

$\frac{9+11+19}{3}=\frac{39}{3}=13$

So, it satisfies the above conditions and they are all less than 25.

Hence, our required integers will be 9,11,19.