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A father is 7 yr older than mother and mother's age now is 3 times the age of daughter. Daughter is 10 yr old now. What was the father's age when daughter was born?
1. 37 yr
2. 27 yr
3. 40 yr
4. 15 yr

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Correct Answer - Option 2 : 27 yr

Given:

Age of the daughter = 10 years.

Calculations:

∵ Mother’s age now is 3 times the age of the daughter.

∴ Age of mother = 3 × 10 years = 30 years.

Again, Father is 7 years older than the mother.

∴ Age of father = (30 + 7) years = 37 years.

∴ Age of father when daughter was born = Age of father 10 years ago

= 37 years – 10 years

= 27 years.

∴ The father's age when daughter was born is 27 years.

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