The average weight of an apple in a sample of 10 apples was calculated as 104 g. Later on, it was found that the weighing had shown the weight of each apple 20 g less. The correct average weight of an apple in that sample is:

Correct option is D

Given:

The average weight of an apple in a sample of 10 apples was calculated as 104 g.

It was later found that each apple was weighed 20 g less than the actual weight.

Solution:

Correct average weight = Calculated average weight + 20 g.

The calculated average weight was 104 g.

Since each apple was 20 g less, we add 20 g to the calculated average:

Correct average weight =104 + 20 =124 g.

The correct average weight of an apple is 124 g.