Question

Question

It takes Sam 4 hours to rake the front lawn, while his brother, Dave, can rake the lawn in 2 hours. How long will it take them
to rake the lawn working together?
wwe, a ake the love in 2 hours. How long wait take them

Answer 1

3 hrs

Explanation:

Thinking process:

Time taken by Sam = 4 hours

Time taken by Dave = 2 hours

Raking the lawn together will take them half the time each takes, so:

Sam =
`0.5*4`

= 2 hrs

Dave =
`0.5 * 2`

= 1 hr

Adding the hours gives = 2 + 1

= 3 hrs