Question

Sam and Jesse can wash 5 cars each hour. they work for 7 hours each day over 2 days. how many cars did Sam and Jesse wash?

Answer 1

`5\ cars\ in \ hour\\ x\ cars\ in\ 7*2\ hours\\\\ making\ proportion:\\ 5-1\\ x- 14\\\\ cross\ multiplication\\\\ 5*14=x\\\\ 70=x\\\\ They\ washed\ 70\ cars.`

Answer 2

Sam and Jesse can wash 70 cars in 2 days.

Explanation:

Sam and Jesse can wash 5 cars each hour or in one hour both Sam and Jesse can wash 5 cars.

They work for 7 hours each day over 2 days. So the total number of hours that they worked is
`7* 2` hours.

Hence, in 14 hours Sam and Jesse can wash,

`=14* 5`

`=70\ hours`

Therefore, working both Sam and Jesse can wash 70 cars in 2 days.