Explanation

It is given that the six children were born at the interval of 2 years ,

Let consider their age as-

x years ( age of youngest child)

( x+2) years ( age of 2nd child)

(x+4) years ( age of 3rd child )

(x+6) years (age of 4 th child)

(x+8) years ( age of 5th child)

( x+10) years ( age of 6th child)

Given- the sum of ages of 6 children is 60

therefore according to the question :-

( x+x+2+x+4+x+6+x+8+x+10) = 60

6x + 30= 60

6x = 60-30=30

x = 30/ 6 = 5

∴ The age of youngest child is 5