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Wednesday, August 23 2017 @ 01:21 AM CDT
 Forum Index >  Test Paper Related >  Primary 3 Matters
 Maths Question
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By: shirley wee (offline)  Friday, April 27 2012 @ 06:13 AM CDT (Read 1502 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 Question

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By: andre (offline)  Friday, April 27 2012 @ 08:16 PM CDT  
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Total amount to be earned=($200x4) + $40=$840
Total no. of cars they have to wash= $840 / 6 = 140 cars

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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? Smile

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