Question

Sasha can mow 3/8 acre of grass in 45 minutes. How many a acres of grass does Sasha now per hour how to slove this problem

Answer 1

45 minutes is 3/4 hour. This means that an hour is a third longer (1/4 hour) so we need to multiply 3/8 by 1 1/3 or 4/3: 3/8*4/3=1/2 so Sasha can mow 1/2 acre of grass in one hour.

The rate is therefore 1/2 acre per hour. To check this we multiply 3/4 (of an hour) by 1/2=3/8 acre.

Answer 2

1/2 acre per hour

Explanation:

45 minutes =3/4 hour.

If Sasha mows 3/8 of an acre in 3/4 hour
→ Shasha mows 1/8 of an acre in 1/4 hour

→ Sasha mows 4/8=1/2 of an acre in 4/4=1 hour.