Correct Answer: 35
Explanation:
Given S = 17 yrs
A = 16 yrs
B = 12 yrs
Average = 17 + 16 + 12/3 = 15 yrs
Given if Aslam added to them, their average increases by 5
=> Average of 4 members = 20
Let the age of Aslam be 'x'
Then,
17 + 16 + 12 + x /4 = 20
=> x = 80 - 45
=> x = 35.
Hence, the age of Aslam is 35 yrs.
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