" I am eight times as old as you were when I was as old as you are " , said a man to his son.
" I am eight times as old as you were when I was as old as you are " , said a man to his son. Find out their present ages if the sum of the their ages is 75 years.
Answer/Solution
27
Steps/Work
present age of boy x and previous age of boy y
so present age of dad : 8y and previous age is x
so the gap between duration must be same
so 8y-x=x-y --> x=9y/2
and x+8y = 75 (given) --> 9y/2 + y=75 so y=6 and and x=27
therefore fathers age is 8y = 8*6 = 48
and child's age = x=27
ANSWER:E
so present age of dad : 8y and previous age is x
so the gap between duration must be same
so 8y-x=x-y --> x=9y/2
and x+8y = 75 (given) --> 9y/2 + y=75 so y=6 and and x=27
therefore fathers age is 8y = 8*6 = 48
and child's age = x=27
ANSWER:E