My uncle puzzled me by saying, well, 18 years ago, I was three times as old
as my son. But now, I am twice as old as my son. What is my uncle's age?
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Step-by-step explanation:
let present age of uncle=x
let present age of son=y
ACCORDING to question,
X=2y
18 years ago,
age of uncle=x-18
age of son=y-18
ACCORDING to question,
x-18=3(y-18)
x-18=3y-54
x=3y-54+18
x=3y-46
2y=3y-46
2y-3y=-46
-y=-46
y=46
x=2y
x=2×46=92
age of uncle=92 years
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