Multiple choice

The ratio of the age of Abhimanyu and Brajesh, 5 years ago was 4:5 and 5 years hence, the ratio of their ages will be 6:7. If at present Chintanmani is 10 years younger than brajesh, then find the ratio between the present ages of Abhimanyu and Chintanmani.

  1. 5:4

  2. 5:3

  3. 4:3

  4. 3:2

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A Correct answer
Explanation

Let ages 5 years ago be 4x and 5x. Current: 4x+5 and 5x+5. In 5 years: (4x+10)/(5x+10)=6/7 gives x=5. Present ages: Abhimanyu=25, Brajesh=30. Chintanmani=30-10=20. Ratio 25:20=5:4.