
By: tangara (offline) Saturday, July 30 2011 @ 10:32 PM CDT (Read 1099 times)



tangara 
Hi experts,
I would like to know how to draw the model for the questions below:
Jug A & Jug B contained the same volume of orange juice at first.
Dawn drank up 1/2 of the volume of orange juice in Jug A & her sister added in 14.76 liters
of orange juice into jug B.
In the end, the volume of orange juice in Jug A was 5 times the volume of orange juice in Jug B.
Find the volume of orange juice in Jug A at first.
I was told by my friend this solution:
5 units  2 units = 14.76
3 units = 14.76
1 unit = 4.92
4.92 x 2 = 9.84.
But, I can't figure out why B is 2 units and the model drawing.
Hope to have some guidance here.
Thanks.

Junior
Registered: 07/31/10 Posts: 26





By: YTNg (offline) Sunday, July 31 2011 @ 03:40 AM CDT



YTNg 
Hi, I think your question is typed wrongly.
Jug B should have 5 times the amount of orange juice as Jug A.
Since Jug A & Jug B had same volume at 1st
we draw 2 models of 2 units each.
After drinking half of the juice, Jug A was left with 1 unit.
When 14.76 litres was added to Jug B, it would have 2 units + 14.76 litres.
2 units + 14.76 litres is 5 times the volume of orange juice in Jug A.
Therefore, 14.76 litres must be 3 units.
Hopes thats explain the model drawing.

Newbie
Registered: 12/31/06 Posts: 7





By: tangara (offline) Sunday, July 31 2011 @ 05:26 AM CDT



tangara 
No. I didn't type the question wrongly.
So, now is the solution the same?
N I'm still stuck as to the model drawing.

Junior
Registered: 07/31/10 Posts: 26





By: anniechew12 (offline) Monday, August 01 2011 @ 11:47 PM CDT



anniechew12 
Hi, I agreed with YTNg method. The final answer is the same as your friend mentioned to you.
Jug B should be 5 times of Jug A since Jug A volumn is reduced to half meanwhile Jug B is added to 14.76.
5 units  2 units = 14.76
3 units = 14.76
1 unit = 4.92
4.92 x 2 = 9.84.
Anyone can teach me how to attach the file. I failed to do it.

Newbie
Registered: 06/23/11 Posts: 5





By: tangara (offline) Tuesday, August 02 2011 @ 09:45 PM CDT



tangara 
Thanks Annie Chew.

Junior
Registered: 07/31/10 Posts: 26



