Answer:
Explanation:
The distance between point A and point B is 24 - 7 = 17.
If each jump is 8/9 = 0.89,
Then 17/0.89 = 19.101 but remember there are no fractional jumps so it would require 20 jumps to get over point B.
Since this point is exactly half of the journey, the journey back will also be 20 jumps making 20 + 20 = 40 jumps.