8 years ago Bhanu rsquo s age was four greater than Ravi rsquo s age that time Also the ratio of Rav...........

Quantitative Aptitude ( CCS) Problems based on Ages

8 years ago, Bhanu’s age was four greater than Ravi’s age that time. Also the ratio of Ravi’s age to Bhanu’s 8 years after will be 6 : 7. Find the ratio of Ravi’s age to that of Bhanu’s age 4 years after ?

4 : 9

7 : 5

6 : 5

5 : 6

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Explanation:

Ravi = x, Bhanu = y
8 years ago, (x-8) + 4 = (y-8) . This gives x – y = -4
After 8 years, (x+8)/ (y+8) = 6/7. This gives 7x – 6y = -8
Solve both equations, x = 16, y = 20
So required ratio = (16+4) : (20+4) = 20 : 24 = 5 : 6

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