Mother's age today is thrice as her daughter's. After 10 years it would be just

Question

Mother's age today is thrice as her daughter's. After 10 years it would be just double. How much old is the daughter today?

Answer: Option C
- Let the age of the daughter today be ‘X’ years.
Mother’s age today = 3X years
After 10 years, we have
3X + 10 = 2(X + 10) ===> X = 10 years

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