Question 972090
my uncle's present age is twice of my sister's age 10 years ago, my uncle's age was thrice of my sisters age. Find out their present age separately.
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let x=sister's present age
2x=uncle's present age
..
10 yrs ago:
x-10=sister's age
2x-10=uncle's age
2x-10=3(x-10)
2x-10=3x-30
x=20
2x=40
sister's present age=20
uncle's present age=40