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 Post subject: Help please
PostPosted: Fri Jul 26, 2013 9:24 am 
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Joined: Sun Jan 20, 2013 10:22 am
Posts: 73
GL maths 6, question number 10
If A = 3, B = 6, C = 8, D = 9, E = 12,
what is the answer to this sum written as
a letter?
E/CxB + A = (?)

Answer is E

I am not sure how to work out, can you shed some lights please.


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 Post subject: Re: Help please
PostPosted: Fri Jul 26, 2013 9:40 am 
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Joined: Wed Nov 23, 2011 12:52 pm
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Location: Shamballa
order is do the division first:

12/8=1.5

1.5*6=9

9+3=12

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 Post subject: Re: Help please
PostPosted: Fri Jul 26, 2013 9:42 am 
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Thank you.


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 Post subject: Re: Help please
PostPosted: Mon Aug 12, 2013 11:08 am 
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Posts: 452
goldenstar - I will suggest that you understand the BIDMAS rule which will help you to solve any of such questions. The order of calculation is Bracket, Indices, Division, Multiply, Add and Subtract

Your question: If A = 3, B = 6, C = 8, D = 9, E = 12,
what is the answer to this sum written as a letter?
E/CxB + A


Step 1. Calculate "E/C" = 12/8 i.e. 3/2
Step 2. Calculate "X B" = 3/2 X 6 = 9
Step 3. Calculate "+A" = 9 + 3 = 12

Answer is 12

You can also try

4 X (3 square) + (12/2 - 3) - 5

4 X 9 + (6 - 3) -5

4 X 9 + (6 - 3) -5

36+3-5

39-5

Answer 34


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