Question

the sum of ages of 4 children born at the intervals of 4 years each is 40 years, what is the ages of the oldest child?​

Answer 1

Answer:

let the age of the smallest child be x

therefore, the age of the other children will be+

x+2, x+4, x+6 (given that each child is born at the interval of 2 years)

but the sum of all the years of children of equal to 52

=> x + (x+2) + (x+4) + (x+6) =52

= x+x+2+x+4+x+6= 52

= 4x + 12= 52

= 4x=40

= x=10= age of the smallest child

and hence the age of the oldest child= x+6

= 10+6 =16 years