Question

An average of 13 positive numbers is 42 If each number is increased by 5 What will the the new aveaage.​

Answer 1

The average of 5 positive integers is 40 --> the sum of these 5 integers is 5*40=200;

The difference between the largest and the smallest of these 5 numbers is 10 --> let the smallest integer be x and the largest x+10;

Now, we want to maximize x+10.