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