A father is nine times as old as his son and the mother is eight times as old as the son. The sum of the father's and the mother's age is 51 years. What is the age of the son?

20152Mprelimsupscyear-2015p2csatquantitative-abilitylinear-equation
A.7 years
B.5 years
C.4 years
D.3 yearsCorrect
Explanation & Solution

Correct Option: (D) 3 years

Let son's age be x. Father's age = 9x, Mother's age = 8x. Given: 9x + 8x = 51. Therefore 17x = 51. x = 3 years.

हिंदी में प्रश्न एवं आदर्श उत्तर

A father is nine times as old as his son and the mother is eight times as old as the son. The sum of the father's and the mother's age is 51 years. What is the age of the son?

A.7 years
B.5 years
C.4 years
D.3 yearsसही

सही उत्तर: (D) 3 years

Let son's age be x. Father's age = 9x, Mother's age = 8x. Given: 9x + 8x = 51. Therefore 17x = 51. x = 3 years.

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