Lesson: Applied Arithmetic - 16t01

In-Format Averages Problems

[Page 16 of 36]

Now apply your knowledge to some in-format problems. Click on the correct response and then click Continue.

The average age of the members in a five-person choir is 34. If the ages of four of the members are 47, 31, 27, and 36, what is the fifth member's age?

	29
	32
	34
	37
	41

Thus , so by cross-multiplying you get 170 = 141 + x.

So x = 29 and the answer is Choice (1).

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