Question

Q3. The sum of ages of 5 children born in a family at the intervals of 4 years each is 50 years. What is
the age of the eldest child?
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Answer 1

Answer:

The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child? Since, the children were born at the interval of three years ,let us assume their age as x, x+3,x+6,x+9,x+12. Hence, age of the youngest child is 4 years.

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Answer 2

Age of the Eldest Child = 18 years old

Step-by-step explanation:

Age of Child 1 = x

Age of Child 2 = (x + 4)

Age of Child 3 = (x + 8)

Age of Child 4 = (x + 12)

Age of Child 5 = (x + 16)

50 = x + (x + 4) + (x + 8) + (x + 12) + (x + 16)

50 = 5x + 40

50 - 40 = 5x

5x = 10

x = 10 ÷ 5

x = 2

Age of Child 5 (eldest child) = (x + 16)

= (2 + 16)

= 18 years