Question
Five years ago from now, ratio of ages of Sohan and
Mohan was 3:5, respectively. If 5 years hence from now, ratio of their ages will be 7:10, then find the present age of Sohan.Solution
Let age of Sohan and Mohan, 5 years ago from now was '3x' years and '5x' years, respectively ATQ; {(3x + 10)/(5x + 10)} = (7/10) Or, 30x + 100 = 35x + 70 Or, 5x = 30 Or, x = 6 So, present age of Sohan = 3x + 5 = 3 X 6 + 5 = 23 years Hence, option c.
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