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Sunday, August 20 2017 @ 09:48 PM CDT
 Forum Index >  Test Paper Related >  Primary 6 Matters
 ACS 2011 SA2
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By: manhan (offline)  Wednesday, July 04 2012 @ 12:49 AM CDT (Read 1040 times)  
manhan

Q1) 4 girls share 2 identical butter cakes equally.
5 boys share 4 identical butter cakes equally.
What is the difference between each boy's and each girl's share?

1) 1/5
2) 1/4
3) 3/10
4) 1/2

I keep getting 1.1/2 Frown

Q2) At first Alvin had twice as many trading cards as Steven. After Alvin had given away 285 of his trading cards, Steven had twice as many trading cards as Alvin. How many trading cards did they have altogether at first?

Answer given: 845. But I got 570 Frown

Would appreciate any help here. Thank You.

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By: echeewh (offline)  Wednesday, July 04 2012 @ 05:37 AM CDT  
echeewh

Q1.

each G's share: 2/4
each B's share: 4/5

Difference: 4/5 - 2/4 = 6/20 = 3/10

Q2.

Your answer of 570 is correct. You can actually put this number back into the question and find that it makes sense.

==================================

Do let me know again if Q1 does not agree with your answerkey.

Cheers,
Edward

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By: manhan (offline)  Wednesday, July 04 2012 @ 09:50 PM CDT  
manhan

Thank you Edward Smile

I have realised my mistake in q1. Have changed Girls 1 whole into 5 parts, thus 2.5 for 1 girl. And 4 for1 boy thus diff = 1.5 Razz. Should have left them in fraction. cheers!

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