Question

A water sprinkler covers 90 degrees of a backyard lawn. How many TIMES will the sprinkler need to be moved in order to cover the FULL 360 degrees of entire lawn?

Answer 1

Answer:

Water sprinkler covers - 90 degrees

Water sprinkler needs to cover - 360 degrees

No. of times sprinkler need to cover the entire lawn = 360/9=4

Thus, the sprinkler needs rotate 4 times