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 By: sundarshoba (offline)  Friday, July 20 2012 @ 05:33 PM CDT (Read 904 times)
sundarshoba

Chatty

Registered: 12/31/06
Posts: 53

 By: echeewh (offline)  Monday, July 23 2012 @ 09:30 PM CDT
echeewh

Hey Sundar,

The worked solution for Q14(b) was provided in earlier post dated 22/6/12 (found on pg 7 as of today, 24/7). Kindly refer to that post/thread.

Revision:
<29 July> - The following worked solution is for Paper 2 Q13 ( Not Paper 1 - Question different from what was posted in attachment by Sundar). As for the solution to Paper 1 Q13 kindy refer to my latest post below.

Heres the worked solution for Q13 ( which is fairly straightforward).

*** - buffer space for alignment purpose

A***********B***********C
16*********12**********14

<(3/8) from A poured to C>
A remaining: (5/8) x 16 = 10, i.e. 6 poured to C.

10*********12**********20

<(1/3) from B poured equally to A and C>
B remaining: (2/3) x 12 = 8, i.e. 4 poured equally into A and C. So A and C would get 2 each.

12*********8***********22

<(4/11) from C poured into A>
C remaining: (7/11) x 22 = 14

C (at end) = 14 litres

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

Trust this helps.

Do let me know again if theres any clarification.

Cheers,
Edward

Active Member

Registered: 04/21/11
Posts: 627

 By: echeewh (offline)  Saturday, July 28 2012 @ 07:45 PM CDT
echeewh

Hey Sundar,

Thank you for pointing this out that the worked solution provided earlier on this post to Q13 is not exactly the one you were asking for. I was thinking that Q13 is also from Paper 2 - the same as Q14(b). Anyway here's the worked solution and explanation for Paper 1 Q13.

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

D (HC - 2way) = 68 x 2 = 136 km
D (CH - 1way) = 136 ÷ 2 = 68 km
68 ÷ 17 = 4 intervals
in 4 intervals, there are only 3 pickup points as shown below:

** - buffer space for alignment purpose
C: Convention Center
H: Hotel
P: Pickup point

C***P***P***P***H
|------|-----|-----|------|

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

Trust this helps and is clear to you.

Anything else, pls do let me know again.

Cheers,
Edward

Active Member

Registered: 04/21/11
Posts: 627

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