Question

If a sprinkler waters 1 over 8 of a lawn in 1 over 4 hour, how much time will it take to water the entire lawn? (1 point)

Answer 1

It would take 2 hours. To complete the whole lawn you would need:
$\frac{8}{8}$
To make a whole, so to get that we multiply:
$8 \times \frac{1}{8} = \frac{8}{8}$
So we use the same number required for the whole lawn, and multiply it times the hours
$\frac{1}{4} \times 8 = 2$

Answer 2

It will take 2 hours