The average of 50 numbers is 30. If two numbers 35 and 40 are discarded, then the average of the remaining numbers is nearly?
- 29.68
- 28.32
- 29.27
- None of these
Explanation
The average of 50 numbers is 30, so the sum of all 50 numbers is 50 x 30 = 1500.
If we discard 35 and 40, we subtract these from the total sum: 1500 - 35 - 40 = 1425.
Now, we have 48 numbers left (50 - 2 = 48).
To find the new average, we divide the remaining sum by the number of remaining numbers: 1425 ÷ 48 ≈ 29.68.
So, the correct answer is: 29.68
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