Answers

The Brainliest Answer!
2016-01-23T11:22:05+05:30
4 yrs after when X will be 40 and Y will be 20
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2016-01-23T11:56:49+05:30
After 4 years X will be twice as old as Y
36+4=40
 16+4=20
and 40/2 =20
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