Question

the sum of the present ages of mother and her daughter is 50 years .after 20 years mother age will be twice her daughter age at that time. find their present ages.

Answer 1

Sum of ages = 50.

let mothers age be x

and daughters age (50-x)

After 20 years:

Mothers age x + 20

Daughters age (50 - x) + 20

given mothers age = 2× daughters age

x + 20 = 2 (50 - x + 20)

x + 20 = 100 - 2x + 40

3x = 120

x = 40

therefore mothers age 40 yrs. Daughters age 10 yrs.

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Answer 2

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