Question

The average score of 7 players was initially recorded as 55. However, it was later discovered that a score of 35 had been mistakenly read as 53. Determine the correct average score.(Rounded up to two decimal places)

• A. 54.31
• B. 32.43
• C. 52.43
• D. 42.08

Answer 1

Answer:

C. 52.43

Initial (incorrect) average = 55 for 7 players

So, incorrect total score
$= (55 \times 7 = 385)$

A score was read as 53 instead of 35, i.e. 18 extra was added.

Correct total score
= (385 - 18 = 367)

Correct average
$= \frac{367}{7} = 52.42857$

$=52.43$

Correct average score = 52.43