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 Post subject: A simple maths problem
PostPosted: Sat Jul 30, 2016 10:08 am 
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Joined: Fri Dec 31, 2010 4:04 pm
Posts: 45
Hi,

I have the following maths question with options given. Can someone help me in finding what is the answer and how it is calculated

Mr Chan's garden is 40 m long and 25.5 m wide. If he paves the garden with tiles which are 50 cm square, how many tiles he need
a) 4080
b) 1000
c) 408
d) 2000
e) 2020

Thanks


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PostPosted: Sat Jul 30, 2016 10:19 am 
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Think about how many he can fit along each side.

40m long - each tile 50cm - so ....

Try and think it through and if you can't work it out we'll give another hint.


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PostPosted: Sat Jul 30, 2016 4:49 pm 
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Doesn't 50 cm square mean that area of each tile is 50 cm square? Isn't the question a bit vague as the kid has to assume that 50 is the length of one side and not the area of a whole tile?

Thanks.


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PostPosted: Sat Jul 30, 2016 5:21 pm 
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The wording means that the tile is 50 cm along each side and that it is a square.


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PostPosted: Sat Jul 30, 2016 5:58 pm 
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thanks for replying. I got the context.


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PostPosted: Sat Jul 30, 2016 7:48 pm 
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Location: Essex
You are probably thinking of '50 square centimetres'? Which would be a tile with sides of a length just over 7cm.

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