Question
The respective ages of a mother and her daughter are 65
and 21 years. In how many years will the mother be thrice as old as her daughter?Solution
Mother’s age = 65 years Daughter’s age = 21 years Let after ‘t’ years, mother’s age is thrice of her daughter. => 65 + t = 3(21 + t) => 65 + t = 63 + 3t => 2t = 2 => t = 1 year
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