Question

sheila is now 15 years older than her yonger brother sanjay.ten years from now,shiela will be twice as old as sanjay.find present age of each of them.
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Answer 1

Answer :
     Let the Present age of Sanjay (in Years ) = x
     Therefore , Present age of Sheila = x+15
     After 10 years ,
       Shielas age =  x+15+10
                         = x+25
       sanjay's age = x+10

According to question ,
               x+25 = 2(x+10)
               x+25 = 2x + 20
             25 = 2x + 20 - x
             25 = x+20
             25 - 20 =x
             5 =x
or x=5
Hence Present age of Sanjay = 5 years
and Present age of Shiela = x+15
                                      = 5+15
                                       = 20 years

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Answer 2

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