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Thursday, November 23 2017 @ 03:07 AM CST
 Forum Index >  Test Paper Related >  Primary 5 Matters
 Q29
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By: JessicaTan (offline)  Friday, October 19 2012 @ 05:09 AM CDT (Read 631 times)  
JessicaTan

Hi, please help with working solution.

X, Y and Z shared their collection of stamps. X received 1/3 of the number of stamps. Y and Z shared the remaining stamps in the ratio of 5 : 3 respectively. If Y received 11 more stamps than X, how many stamps do they have in their collection?


Rdgs
Jessica

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By: echeewh (offline)  Sunday, October 21 2012 @ 05:51 AM CDT  
echeewh

Hi Jessica,

Following pls find my worked solution:

Q29

Y + Z shared (2/3) of the stamps in ratio of 5 : 3

Y = (5/8) × (2/3) = (5/12)

Z = (3/8) × (2/3) = (3/12)

Y - X = 11
(5/12) - (1/3) = 11
(1/12) = 11

Total collection = (12/12) = 12 × 11 = 132

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

Trust this helps.

Do let me know again if this is different from your Answerkey or if there's further clarification.

Cheers,
Edward

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Posts: 627

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