Question

It takes Evan 6 3/4 hours to mow 3 lawns.It takes him 2 1/3 hours to mow Mr.Gals lawn and 1 3/4 hours to mow Ms. Lee's lawn. How many hours does it take Evan to mow the lawn?

Answer 1

Answer:

It takes him $2\frac{2}{3}$ hours to mow the third lawn

Explanation:

We are given that Evan takes $2\frac{1}{3}$ hours to mow Mr. Gals lawn and $1\frac{3}{4}$ hours to mow Mrs. Lee's lawn

This means that:

Time taken to mow the two lawns = $2\frac{1}{3} + 1\frac{3}{4} = 4\frac{1}{12}$ hours

Now, we are given that the time taken to mow the three lawns is $6\frac{3}{4}$ hours

This means that:

Time taken to mow the third lawn = $6\frac{3}{4} - 4\frac{1}{12} = 2\frac{2}{3}$ hours

Hope this helps :)