Question

The sum of ages of family members(both children and parents) is 360 years. The total ages of children and parents are in the ratio 2:1 and the ages of wife and husband are in the ratio 5:7. What will be the age of husband?

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Answer 1

Children and parents ratio

$2x:1x$

$2 + 1 = 3$

$\frac{360}{3} = 120$

Wife and husband ratio

$5x:7x$

$5 + 7 = 12$

$\frac{120}{12} = 10$

$Husband's \: age = 7x = 7 \times 10 = 70$

Hence husband's age is 70 years.