374 Answers
- A TREE PLANTING PUZZLE
The illustration shows the graceful manner of planting the trees so as to get
nine rows with four trees in every row.
436. THE TWENTY PENNIES
Arrange the sixteen pennies in the form of a square 4 by 4. Then place one
penny on top of the first one in the first row; one on the third in the second
row; one on the fourth in the third row; and one on the second in the
fourth row.
- TRANSPLANTING THE TREES
The illustration explains itself. Only six trees have been transplanted, and
they now form twenty rows with four trees in every row.