Q&A - P4 Math

[MathIzzzFun]

chloecube:

Ms Ong has a packet of sweet. If she gives 6 sweets to each pupils, she will have 2 sweet left, if she give 7 sweets to each pupils, she will be short of 11. How many sweets are there in the packet? Howamy pupils does ms Ong have?

Hi

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http://www.flickr.com/photos/62167097@N02/6967105663/in/photostream

cheers.

[BigDevil]

chloecube:

Ms Ong has a packet of sweet. If she gives 6 sweets to each pupils, she will have 2 sweet left, if she give 7 sweets to each pupils, she will be short of 11. How many sweets are there in the packet? Howamy pupils does ms Ong have?

Ms Ong has 2 extra sweets when handing out 6 sweets to each pupil.

To give out 7 sweets to each pupil, those 2 extra sweets will be given out, and she still needs 11 more.

From that, it can be deduced that number of pupils = 2 + 11 = 13.

So number of sweets = (13 x 6) + 2 = 80

Err....but I don't know how to express the above mathematically. :oops:

[BigDevil]

MathIzzzFun:

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:salute:

[cmm]

This is something like Sudoku I think…


9 squares are arranged 3 x 3. Fill in the squares with digits 1 to 9, not repeating, so that when they are added up horizontally, vertically or diagonally, they add up to the same number.

Many thanks!!!

[tianzhu]

cmm:

This is something like Sudoku I think....


9 squares are arranged 3 x 3. Fill in the squares with digits 1 to 9, not repeating, so that when they are added up horizontally, vertically or diagonally, they add up to the same number.

Many thanks!!!

Hi

This is more like a brain teaser, not typical P4 maths questions.

4--9--2
3--5--7
8--1--6

The numbers add up to 15, horizontally, vertically and diagonally.

Best wishes

[cmm]

Thank you, thank you, tianzhu for coming to my rescue again!


This question was given by my girl’s class math teacher to the class. How about the same question, now 5 x 5?

Thanks lots!!!

[tianzhu]

cmm:

Thank you, thank you, tianzhu for coming to my rescue again!


This question was given by my girl's class math teacher to the class. How about the same question, now 5 x 5?

Thanks lots!!!

Hi

1--24--17--15--8
14--7--5--23--16
22--20--13--6--4
10--3--21--19--12
18--11--9--2--25

The numbers add up to 65.

Ok, no more brain teasers, time to watch tv already.

Best wishes

[cmm]

:thankyou:

[chloecube]

Thank you everyone.

[ppnadh]

1) Devi has a bale of cloth measuring 96m. She used 1/3 of the cloth on saturday and 1/4 of the same cloth on sunday. How much cloth did she use on both days?


The answer is 56m. Can somebody explain this to me.

2)Tan bought a sack of rice on monday and cooked 1 1/2kg of the rice everyday. By sunday, he was 1/2kg short of rice. On which day did she cook 3/5 of the rice in the sack?

The answer is "On Thurday". I dont know to solve it. Pl help me.