Answer
The cost flow methods used are -
1. Knott Company is using FIFO method
2. Quirk Company is using LIFO method
3. Knott Company will report higher gross profit, as they are
using FIFO method
Work Step by Step
1.As the units in stock will be units purchased recently.
2. As the units in stock will be units purchased in earlier period,
when the prices were low.
3. In the period of rising price, FIFO produces a higher gross
profit because of lower unit costs.