The average height of 15 students is 160 cm. If two students leave, the new average becomes 159 cm. What is the average height of the two students who left?

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Accepted Answer

1. Total height of 15 students = $15	imes160=2400$ cm.
2. After 2 leave, total for 13 students = $13	imes159=2067$ cm.
3. Height of the two who left = $2400-2067=333$ cm.
4. Their average = $\frac{333}{2}=166.5$ cm, so option **(b)** is correct.

FINAL_ANSWER: b

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