The difference the ages of twopersons is 10 years.15 years ago the elder one was twice as old as the younger the present age of the elder person is
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Let the ages are x years and (x + 10) years,
15 years ago, According to the question :
=> (x + 10 - 15) = 2(x - 15)
=> (x - 5) = 2x - 30
=> x - 5 = 2x - 30
=> 30 - 5 = 2x - x
=> 25 = x
Hence, present age of elder person = (x + 10) = (25+10) = 35 years
15 years ago, According to the question :
=> (x + 10 - 15) = 2(x - 15)
=> (x - 5) = 2x - 30
=> x - 5 = 2x - 30
=> 30 - 5 = 2x - x
=> 25 = x
Hence, present age of elder person = (x + 10) = (25+10) = 35 years
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