Multiple choice

At present the ratio between the ages of Rahul and Nirdosh is 2 : 1 after 7 years, Rahul's age will be 21 years. what is the age of Nirdosh at present ?

  1. 5 years

  2. 7 years

  3. 9 years

  4. 12 years
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Rahul's age after 7 years is 21, so his present age is 21 - 7 = 14. The ratio of Rahul to Nirdosh is 2:1, so Nirdosh's age is 14 / 2 = 7 years.

AI explanation

Let the present ages of Rahul and Nirdosh be 2x and x. In 7 years, Rahul's age will be 2x + 7, which is given as 21, so 2x equals 14 and x is 7. Therefore, Nirdosh's present age is 7 years.

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