#### Answer

$\frac{42}{45}$

#### Work Step by Step

To find a probability $P(x)$, we want to divide the number of events in the group $x$, and divide that number by the total number of events. In this case, if we assume that every apple that is not bad is good, then the farmer picked $225-15=210$ good apples, out of the $225$ apples in total. Therefore, P(next apple will be good) is $\frac{210}{225}$, which is equivalent to $\frac{42}{45}$.