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Averages · Question 40 of 62

Question 40

EasyOriginal question

The average of 10 numbers is 24. When a new number, 46, is included, what is the new average?

Options for question 40

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. Old total = 10×24=24010 \times 24 = 240.

  2. New total = 240+46=286240 + 46 = 286, now for 11 numbers.

  3. New average = 28611=26\frac{286}{11} = 26.

Worth noting

Divide by 11, not 10 (that gives 28.6). 35 is just the average of 24 and 46.

Concept
New average after adding a value
Typical time
35 s
Your time
—
The rule this testsChange in average
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Ten questions from Averages, at your own pace.

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Ten questions from Averages, at your own pace.

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