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The present age, of Ravi's father is four times Ravi's present age. Five years back he was seven times as old as Ravi was at that time. What is the present age of Ravi's father?

A) 84 years
B) 70 years
C) 40 years
D) 35 years

Correct Answer:



C) 40 years

Description for Correct answer:
Let Ravi's present age be x Ravi's father present age is 4x

Now five year back, Age of Ravi's = x - 5

and Age of Ravi's father = 4x - 5.

Now five years back Ravi's father was seven time as old as Ravi

4x - 5 = 7(x - 5)

4x - 5 = 7x - 35

7x - 4x = 35 - 5

3x = 30

x = 10 years

Hence present age of Ravi's father = 4x = 4(10) = 40 years.

Part of solved CDS Maths(2) questions and answers : Exams >> CDSE >> CDS Maths(2)

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