The sum of the ages of rishu dev and sonu is 200 years 35 years ago the ratio of their ages was 4 5 ...........

Quantitative Aptitude (CDS) Problems based on Ages

The sum of the ages of rishu, dev, and sonu is 200 years. 35 years ago the ratio of their ages was 4 : 5: 7 .What is the present age of dev?

300 years

604 years

95/16 years

1035/16 years

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Explanation:

Let the ages of rishu, dev and sonu 35 years ago be 4x, 5x, and 7x years.
Present age of rishu = (4x + 35) years
Present age of dev = (5x + 35) years
Present age of sonu = (7x + 35) years
According to question,
(4x + 35) + (5x + 35) + (7x + 35) = 200
= 16x + 105= 200
= 16x = 95
x= 95/16
Present age of dev= 5x + 35
= 5 × 95/16 + 35
= 1035/16 yr