Multiple choice

The present age of S is six times that of present age of G. After 10 years, the ratio between S and R is 2: 1. If R celebrated her 4th birthday 6 years before. Then what is the age of G after 8 years?

  1. 23 years

  2. 13 years

  3. 18 years

  4. 24 years
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let S's present age be 6x and G's present age be x. R celebrated 4th birthday 6 years ago, so R's present age = 10. After 10 years: S = 6x+10, R = 20. Given ratio S:R = 2:1, so 6x+10 = 40, giving 6x = 30 and x = 5. G's present age = 5. After 8 years: 5 + 8 = 13 years. Option B is correct.

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