Lesson: Applied Arithmetic - 16t01

In-Format Averages Problems

[Page 16 of 36]
Task 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

Hint

Continue

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

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

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