The difference between the present age of Arun and Deepak is 14 years Seven years ago the ratio of t...........

Quantitative Aptitude ( CCS) Average

The difference between the present age of Arun and Deepak is 14 years. Seven years ago the ratio of their ages was 5:7 respectively. What is Deepak's present age?

49 years

42 years

63 years

56 years

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Explanation:

Seven years ago, let Arun’s and Deepak’s age be 5x and 7x years respectively.
∴ Arun’s present age = (5x + 7) Years
Deepak’s present age = (7x + 7) Years
According the question,
7x + 7 – 5x – 7 = 14
= 2x = 14
x = 14/2 = 7
∴ Deepak’s present age = 7x + 7
= 7 × 7 + 7 = 56 years