Answer: The required percent of red apples is 67%.
Step-by-step explanation: Given that a bowl has 15 apples, and 10 of the apples are red.
We are to find the percent of the apples that are red to the nearest whole number.
The percent of the apples that are red is given by

Number of red apples = 10
and
total number of apples = 15.
Therefore, we get

Rounding to the nearest whole number, we get

Thus, the required percent of red apples is 67%.