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Friday, October 20 2017 @ 11:10 AM CDT
 Forum Index >  Test Paper Related >  Primary 6 Matters
 P6 Maths ! 2012 SA1 Nan Hua Paper 1 Q30
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By: geniuskids (offline)  Monday, April 29 2013 @ 11:18 AM CDT (Read 983 times)  
geniuskids

Hi there, pls help:-

(Q30) Joe, Kate and Harry scored a total of 618 marks in a test.
Kate scored 10% more than Joe while Harry scored 10% less than Kate.
How many more marks did Joe score than Harry?

Answer from answer sheet is 2

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By: echeewh (offline)  Monday, April 29 2013 @ 04:55 PM CDT  
echeewh

Hey there,

Following pls find my worked solution:

Q30

K: 110%
J: 100%
H: 90% × 110 = 99%

110% + 100% + 99% = 618
309% = 618
J - H = 100% - 99% = 1%
1% = 618 ÷ 309 = 2

=========

Trust this helps.

Do let me know again if theres further clarification.

Cheers,
Edward

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By: geniuskids (offline)  Tuesday, April 30 2013 @ 09:18 AM CDT  
geniuskids

Laughing Out Loud Thanks Edward, you made it sound so simple.

Million thanks

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