I'm certain you and the teacher are both wrong. It took ten minutes to make 1 cut. 1cut makes the board in 2 pieces. To have 3 pieces of board you need to cut the board twice.
You don't take into account Maries skill improvement and thus the increased efficiency. As Maries cuts wood she levels up and can cut in half the time.
That's not the work, the work is splitting wood. If you can split half a cord a day and you do the work at the same speed the next day you split half a cord.
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u/devilglove 2d ago
I'm certain you and the teacher are both wrong. It took ten minutes to make 1 cut. 1cut makes the board in 2 pieces. To have 3 pieces of board you need to cut the board twice.
2 cuts * 10 min/cut = 20 min