Last week, Justin's Fruit Stand sold
1
2
of a box of plums. Down the road, Avery's Fruit Stand sold 1
1
5
times as many boxes of plums as Justin's did. How many boxes of plums did Avery's Fruit Stand sell?
Avery's Fruit Stand sold \( \frac{1}{2} \times 15 = 7.5 \) boxes of plums.
Since fractions of boxes can't be sold, we need to round up to the nearest whole number.
Therefore, Avery's Fruit Stand sold 8 boxes of plums.