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Ravi is older than Simar by 4 years. Four years from now, the respective ratio between Ravi?s age and Simar?s age will be 9:8. What will be the Ravi?s age 15 years ago? (in years)
- A19
- B36
- C17
- D25
Answer not set
Discussion 1
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CCommunity
Solution
Let Ravi's age be x and Simar's be y.
x=y+4
After 4 years,
(x+4)/(y+4) = 9/8
8x-9y = 4
After solving we get Ravi's age be 32 years.
15 years before his age is 32-17=17 years.
Let Ravi's age be x and Simar's be y.
x=y+4
After 4 years,
(x+4)/(y+4) = 9/8
8x-9y = 4
After solving we get Ravi's age be 32 years.
15 years before his age is 32-17=17 years.