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Friday, August 18 2017 @ 07:39 AM CDT
 Forum Index >  Test Paper Related >  Primary 6 Matters
 SCGS 2010 PRE Paper2
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By: sundarshoba (offline)  Sunday, July 08 2012 @ 09:27 AM CDT (Read 1010 times)  
sundarshoba

Please help to solve the attached questions, thank you very much.

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By: MathIzzzFun (offline)  Sunday, July 08 2012 @ 06:12 PM CDT  
MathIzzzFun

Quote by: sundarshoba

Please help to solve the attached questions, thank you very much.



hi

solution for Q17.

cheers.

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By: echeewh (offline)  Monday, July 09 2012 @ 04:17 PM CDT  
echeewh

Hey there,

Jul 10 - Added New

Pls find worked solution for Q16 as follows:

Vol of water in A (at first) = 15 x 20 x 21 cm3
= 6300 m3

(1/4) of these were released to B
= (1/4) x 6300 = 1575 m3

(a)
Vol of water in B (at height of 7 m)
= 15 x 10 x 7 = 1050 m3
Hence, vol of water in C = 1575 - 1050 = 525 m3

Given that height of water level in C is same as in B (7 m), we have ...

Length of C = [Vol / (15 x 7)] = [525 / 105]
= 5 m

(b) 525 m3

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

Trust the above helps.

Do let me know again if there's any clarification.

Cheers,
Edward

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