Multiple choice

If the average of five numbers is -10, and the sum of three of the numbers is 16, then what is the average of the other two numbers?

  1. -33

  2. -1

  3. 5

  4. 20

  5. 25
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A Correct answer
Explanation

Sum of 5 numbers = 5 * -10 = -50. Sum of 3 numbers = 16. Sum of other 2 numbers = -50 - 16 = -66. Average of other 2 numbers = -66 / 2 = -33.

AI explanation

The total sum of all five numbers is 5 multiplied by -10, resulting in -50. The sum of the remaining two numbers is found by subtracting 16 from this total, yielding -66. Dividing this sum by 2 gives the average of the two numbers, which is -33.

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