Question

The average of 45 numbers is 150. Later it is found that a number 46 is wrongly written as 91, then find the correct average.

• A. 151
• B. 147
• C. 149
• D. 153

Answer 1

Answer:

C. 149

The total sum = 150 × 45 = 6750 46 is wrongly written as 91 correct sum= 6750 – (91 – 46) = 6705 Correct average of the data = 6705/45 = 149