Question

The sum of ages of 5 childrens born at the intervals of 3 years each is 50 years what is the age of the youngest child

Answer 1

The the five child be x.
Then,
x+x+3+x+6+x+9+x+12=50
5x + 30 = 50.
5x = 50 - 30
5x = 20
x = 4
youngest child is x+12
4+12 = 16 years
hope it help you...

Answer 2

Answer:

Let the ages of children be x, (x + 3), (x + 6), (x + 9), (x + 12) years.

According to Question now,

➳ x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 50

➳ 5x + 30 = 50

➳ 5x = 50 - 30

➳ x = 20/5

➳ x = 4 years

Therefore,the age of youngest child is 4 years.