Multiple choice

The average of 11 numbers is 8. If a number 12 is removed, then what will be the new average?

  1. $7.4$
  2. $7.6$
  3. $7.8$
  4. $8.2$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The average of 11 numbers is 8, so their sum is 11 × 8 = 88. When 12 is removed, the new sum is 88 - 12 = 76. The new average is 76 ÷ 10 = 7.6. This is a straightforward application of the average formula.

Keep practicing — related questions