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Sachin is younger than Rahul by 7 years. If the ratio of their ages is 7:9, find the age of Sachin

  • 23.5
  • 24.5
  • 12.5
  • 14.5

Answer: Option B

Explanation:

If Rahul age is x, then Sachin age is x-7,
so (x-7)/x = 7/9
=> 9x-63 = 7x
=> 2x = 63
=> x = 31.5

So Sachin age is 31.5 - 7 = 24.5

Similar Questions :

1. The sum of the present ages of a father and his son is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be

  • 15 years
  • 18 years
  • 20 years
  • 22 years

Answer: Option C

Explanation:

Clue : (60 - x) - 6 = 5(x - 6)

2. Ratio between Rahul and Deepak is 4:3, After 6 Years Rahul age will be 26 years. What is Deepak present age.

  • 14
  • 15
  • 20
  • 22

Answer: Option B

Explanation:

Present age is 4x and 3x,
=> 4x + 6 = 26 => x = 5

So Deepak age is = 3(5) = 15

3. The ages of two persons differ by 20 years. If 5 years ago, the elder one be 5 times as old as the younger one, their present ages (in years) are respectively

  • 20,20
  • 20,10
  • 25,15
  • 30,10

Answer: Option D

Explanation:

Let their ages be x and (x + 20) years.
5 (x - 5) = (x + 20 - 5) or 4x = 40 or x = 10.
Their present ages are 30 years and 10 years

4. A man is 24 years older than his son. In two years, his age will be twice the age of his son. The present age of this son is

  • 21 years
  • 22 years
  • 23 years
  • 24 years

Answer: Option B

Explanation:

Let's Son age is x, then Father age is x+24.
=> 2(x+2) = (x+24+2)
=> 2x+4 = x+26
=> x = 22 years

5. Sachin is younger than Rahul by 7 years. If the ratio of their ages is 7:9, find the age of Sachin

  • 23.5
  • 24.5
  • 12.5
  • 14.5

Answer: Option B

Explanation:

If Rahul age is x, then Sachin age is x-7,
so (x-7)/x = 7/9
=> 9x-63 = 7x
=> 2x = 63
=> x = 31.5

So Sachin age is 31.5 - 7 = 24.5

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