A. 11 years
B. 14 years
C. 15 years
D. 15 2/7 years
Explanation:
Age of the 15th student=
[15 * 15 – (14 * 5 + 16 * 9)] = (225 – 214) = 11 years
Correct Answer: 11 years ✔
Last Updated: February 08, 2020
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