Question

The average age of a group of 13 boys is 13.
When two more boys joined the group, the average rose by 2 years. The sum of the ages
of the two new boys is​

Answer 1

Answer:

56

Step-by-step explanation:

sum of 13 boys / 13 = 13

so,sum of 13 boys = 169

two new boys joined = sum of 13 boys + x + y

avg after two boys joined = (sum of 13 boys + x + y)/15

given new avg is 13 + 2 = (sum of 13 boys + x + y)/15

15 =(169+x+y)/15

x+y = 56