The difference between the ages of two persons is 10 years.15 years ago the eldee one was twice as old as the younger one.The present age of elder person is?
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Two persons be A and B respectively
Let age of B be x and age of A be x+10.
15 years ago age of B is x-15 and age of A is x-5.
According to the question:
2(x-15)=x-5
2x-30=x-5
2x-x=30-5
x=25 is age of younger person
x+10 =35 is age of younger person
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