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 By: shirley wee (offline)  Friday, April 27 2012 @ 06:13 AM CDT (Read 1520 times)
shirley wee

4 boys work together to wash cars during the school holidays.
For each car they wash, they are paid \$6 in total.
They work for 4 weeks.
Their total expenses are \$10 per week.
How many cars must they wash in total for each of them to
have \$200 (minus expenses) at the end of the school holidays

Chatty

Registered: 02/28/12
Posts: 68

 By: andre (offline)  Friday, April 27 2012 @ 08:16 PM CDT
andre

Total amount to be earned=(\$200x4) + \$40=\$840
Total no. of cars they have to wash= \$840 / 6 = 140 cars

Newbie

Registered: 01/18/11
Posts: 1

 By: shirley wee (offline)  Saturday, April 28 2012 @ 11:06 AM CDT
shirley wee

Hi friend! I still do not understand your method of answering the question. May you explain clearly?

Chatty

Registered: 02/28/12
Posts: 68

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