Question:
The average of 10 numbers is 40.2. Later it is found that two numbers have been wrongly added. The first is 18 greater than the actual number and the second number added is 13 instead of 31. Find the correct average.
The average of 10 numbers is 40.2. Later it is found that two numbers have been wrongly added. The first is 18 greater than the actual number and the second number added is 13 instead of 31. Find the correct average.
Updated On: Oct 3, 2024
- 40.2
- 40.4
- 40.6
- 40.8
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The Correct Option is A
Solution and Explanation
To rectify the mistake, we need to do the operation on the total =\((−18) +(−13 +31) = 0\)
Therefore, By adding zero, there will be no change in the sum of the numbers, thus the average will remain same = 40.2
The correct answer is (A) : 40.2
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