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5 votes
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

1 Answer

1 vote

Answer:

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

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