Multiple choice

You are given the five numbers p, q, r, s, t. If the average of p and t is 7, and if the average of q, rand sis 12, what is the average of all five number?

  1. $5$
  2. $9.5$
  3. $10$
  4. $19$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The sum of p and t is 14 because their average is 7. The sum of q, r, and s is 36 because their average is 12, so the total sum is 50 and the average of all five numbers is 10.

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