SOLUTION: respected tutor, please help me to solve this problem. the difference between the ages of two sister is 10 years .if 15 years ago the elder one was twice as old the young one .fi

Question 974042: respected tutor,
please help me to solve this problem.
the difference between the ages of two sister is 10 years .if 15 years ago the elder one was twice as old the young one .find their present age..
kindly,
sandra
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
the difference between the ages of two sister is 10 years .if 15 years ago the elder one was twice as old the young one .find their present age..
***
at present:
let x= age of elder sister
x-10= age of younger sister
..
15 yrs ago:
x-15=age of elder sister
x-10-15=x-25= age of younger sister
x-15=2(x-25) ( elder one was twice as old the young one )
x-15=2x-50
x=35
x-10=25
age of elder sister=35
age of younger sister=25
..
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