Question 23
Diana has a plot of land as shown below. The lines indicate the paths along and inside the plot. There are 5 paths and each is 56 metres long. She wants to plant trees along all the paths so that on each path neighbouring trees are 7 metres apart. What is the greatest number of trees she can plant?
As intended by the source, endpoints and intersections do not have to contain trees. A tree at a shared endpoint counts only once.
Enter a whole number without units. The original answer sheet uses four digits with leading zeros (for example, 7 as 0007); leading zeros are optional here.
As intended by the source, endpoints and intersections do not have to contain trees. A tree at a shared endpoint counts only once.
Enter a whole number without units. The original answer sheet uses four digits with leading zeros (for example, 7 as 0007); leading zeros are optional here.