"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 their ages is 75 years.
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let Dad age=x
let son age=y
x=8y
x+y=75
8y+y=75
9y=75
3y=25
y=8.33
x=8*8.33
x=66.64
let son age=y
x=8y
x+y=75
8y+y=75
9y=75
3y=25
y=8.33
x=8*8.33
x=66.64
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