Question
11 years ago from now, the ages of âPawanâ and
âQureshiâ were in the ratio 7:9, respectively. If 7 years hence from now, ages of âPawanâ and âQureshiâ will be in the ratio 8:9, then find the difference between present ages of âPawanâ and âQureshiâ.Solution
ATQ; Let age of âPawanâ and âQureshiâ, 11 years ago was â7xâ years and â9xâ years, respectively ATQ; {(7x + 11 + 7)/(9x + 11 + 7)} = (8/9) Or, 63x + 162 = 72x + 144 Or, x = 2 Required difference = 11x â 9x = 2x = 2 Ă 2 = 4 years
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