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Monday, August 21 2017 @ 01:39 AM CDT
 Forum Index >  Test Paper Related >  Primary 5 Matters
 Henry Park P5 SA2 Problem Sum
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By: sokechan (offline)  Sunday, October 30 2011 @ 12:15 AM CDT (Read 2843 times)  
sokechan

I need some help on this question please.

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

i also need help on this question...

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

I need these two too...

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

I also have problem with these too...

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

Can anybody help us?

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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
p-5p/7=11/7+5
2p/7=46/7
2p=46

Number of stamps bought by Leon = 46.

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

for question 15

20-5=15
15/5=3(left)
3+48=51(at first)
51*3=153

U and draw model it will be easier

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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)

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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

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

hope u understand all

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