Question

Adam lived a quarter of his life as a boy as fifth as a young man, a third in middle-age and 13 years in retirement. How old was we when he died

Answer 1

ANSWER

Find out the how old was we when he died.

To proof

Let us assume that the age of the Adam be x

As given

Adam lived a quarter of his life as a boy as fifth as a young man, a third in middle-age and 13 years in retirement.

$x =\frac{x}{4} +\frac{x}{5} +\frac{x}{3} + 13$

L.C.M of denominator i.e ( 4,5,3) =60

than the equation becomes

60x = 15x + 12x +20x +780

60x - 47x = 780

13x = 780

$x =\frac{780}{13}$

x = 60 years

therefore the Adam age  when he died is 60 years.

Hence proved