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Question

The average age of Manu, Nandini and Sona 3 years ago was 27 years and that of Nandini and Sona 5 years ago was 20 years. The present age of Manu is:

A
40 years
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B
42 years
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C
47 years
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D
50 years
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Solution

The correct option is A 40 years
Sum of the present ages of Manu, Nandini and Sona = (27*3)+(3*3) = 90 years
Sum of the present ages of Nandini and Sona = (20*2) +(5*2) = 50 years
Thus, The present age of Manu = 90-50 = 40 years

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