Non standard Maths question

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Non standard Maths question

Postby lizawa » Sat Apr 18, 2009 11:51 am

Hi,

I have 2 non routine Maths questions given to P5. Any solution with explanation will be appreciated.

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Postby lizawa » Sat Apr 18, 2009 11:53 am

Question 2

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Postby tianzhu » Sat Apr 18, 2009 2:02 pm

lizawa wrote:Question 2

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Hi lizawa

Maybe, we can go along this line

Triangle1) --> (6*6)+(5*5)+12 -->73
Triangle2) --> (2*2)+(3*3)+17 -->30
Triangle3) --> ((4*4)+(7*7)+23 --> 88(ans)

Is it correct?

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Re: Non standard Maths question

Postby tianzhu » Sat Apr 18, 2009 4:43 pm

lizawa wrote:Hi,

I have 2 non routine Maths questions given to P5. Any solution with explanation will be appreciated.

Image


Hi lizawa
My son told me that the answer is 4. If it is correct, I'll upload the solution later.Please advise.

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Postby lizawa » Sat Apr 18, 2009 5:07 pm

Hi Tianzhu,

I don't know the answer :oops:

Can you share your solution.

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Postby tianzhu » Sat Apr 18, 2009 5:44 pm

Hi lizawa

Hope my son's answer is correct.
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Postby lizawa » Mon Apr 20, 2009 11:41 am

Hi Tianzhu,

thanks ! If I get a different solution, I will let you know if your son's answer is correct. Sounds logical to me ! :D Your son must be well prepared for his PSLE.

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Postby csc » Mon Apr 20, 2009 12:26 pm

How about the following solution?

Column 1 : (2 x 16) / 4 = 8

Column 2 : (4 x 12) / 4 = 12

Column 3 : (2 x 48 / 4 = 24

The answer is 24.

What do you all think?

csc
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Postby Dharma » Mon Apr 20, 2009 12:44 pm

I worked out as 24

(Column 1 x Column 2 )/4 = Column 3

or

(Row 1 x Row 2) / 4 = Row 3

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Postby ksmama » Mon Apr 20, 2009 1:24 pm

Hi, my answer is 24 as well
column 1, 2/4 x 16 = 8
column 2, 4/4 x12 = 12
column 3, 2/4 x 48 = 24

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