Multiple choice

The avreage of 10 numbers is calculated as 15.If is discoverd later on that while calculating the average on number,namely 36,was wrongly read as 26 .The correct average is -

  1. 20

  2. 18

  3. 16

  4. 14

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sum of 10 numbers = 10 × 15 = 150. Wrong number 26 should be 36. Correct sum = 150 - 26 + 36 = 160. Correct average = 160/10 = 16. Option C is correct.