
By: sokechan (offline) Sunday, October 30 2011 @ 12:15 AM CDT (Read 2792 times)



sokechan 
I need some help on this question please.

Junior
Registered: 02/25/11 Posts: 23





By: Geeta (offline) Sunday, October 30 2011 @ 01:12 AM CDT



Geeta 
i also need help on this question...

Newbie
Registered: 12/31/06 Posts: 12





By: sokechan (offline) Sunday, October 30 2011 @ 01:21 AM CDT



sokechan 

Junior
Registered: 02/25/11 Posts: 23





By: Geeta (offline) Sunday, October 30 2011 @ 01:34 AM CDT



Geeta 
I also have problem with these too...

Newbie
Registered: 12/31/06 Posts: 12





By: sokechan (offline) Sunday, October 30 2011 @ 01:37 AM CDT



sokechan 

Junior
Registered: 02/25/11 Posts: 23





By: shanthi (offline) Sunday, October 30 2011 @ 01:42 AM CDT



shanthi 
Go through this solution and try your question
thanks
Keane bought some marbles and gave half of them to Leon. Leon bought some stamps and gave half of them to Keane.
Keane used 5 stamps and Leon gave away 11 marbles.. The ratio of the number of stamps to the number of marbles Keane had left then became 1:7 and the ratio of the number of stamps to the number of marbles Leon had left became 1:5. How many stamps did Leon buy?
Keane
Before
Stamps: u+5
Marbles: 7u
After
Stamps: u
Marbles: 7u
Leon
Before
Stamps: p
Marbles: 5p+11
After
Stamps: p
Marbles: 5p
Compare for "before"
u+5=p
7u=5p+11
u=5p/7+11/7
5p/7+11/7+5=p
p5p/7=11/7+5
2p/7=46/7
2p=46
Number of stamps bought by Leon = 46.

Junior
Registered: 12/31/06 Posts: 27





By: shanthi (offline) Sunday, October 30 2011 @ 01:44 AM CDT



shanthi 
for question 15
205=15
15/5=3(left)
3+48=51(at first)
51*3=153
U and draw model it will be easier

Junior
Registered: 12/31/06 Posts: 27





By: shanthi (offline) Sunday, October 30 2011 @ 01:47 AM CDT



shanthi 
12)Michael
P []
A [][][][]<20>
Jackson
P [][25]
A [][25][][25]
we compare the apples of both
4u + 20 = 2u + 50
2u = 30
1u = 15
No. of pears Jackson bought  (1u + 25) x 2  80 (ans)

Junior
Registered: 12/31/06 Posts: 27





By: shanthi (offline) Sunday, October 30 2011 @ 01:48 AM CDT



shanthi 
question 12)Volume of water available
91 x 40 x 41 x 1/2 > 74620cm3
Base Area of A > 3640
Base Area of B > 1560
Ratio of Base Area
A : B
7 : 3 (Total 10u)
10u > 74620
1u > 7462
3u > 22386cm3

Junior
Registered: 12/31/06 Posts: 27





By: shanthi (offline) Sunday, October 30 2011 @ 01:48 AM CDT



shanthi 

Junior
Registered: 12/31/06 Posts: 27



