This question was previously asked in

MPPEB Stenographer 31 July 2018 Shift 1 Official Paper

- 54
- 72
- 60
- 105

Option 3 : 60

**Given **

Ten years ago, the ratio of mother and son = 3 : 1

At present , the ratio of mother and son = 2 : 1

**Calculation **

Let the ratio be x

According to the question

(3x + 10)/(x + 10) = 2/1

⇒ 3x + 10 = 2x + 20

⇒ x = 10

Sum of present age of mother and son = 3x +10 + x + 10

⇒ 40 + 20 = 60 years

**∴ The required answer is 60 years **

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