2.32 ÷ (1+60%) = 20 (tree)

This problem first considers that a batch of parts has been processed 80%, and the remaining 24 parts have not been processed.

The unit of these parts is "1"

So the calculation is based on percentage.

Question 2: Consider 32 poplars, 60% more than Chinese fir trees.

So the fir tree is "1"

Calculate in consideration of percentage.

Pure hand play

Hope to adopt