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Monday, August 21 2017 @ 01:38 AM CDT
 Forum Index >  Test Paper Related >  Primary 4 Matters
 Maths(2 sums)
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By: achieve_goal (offline)  Monday, October 31 2011 @ 01:14 AM CDT (Read 960 times)  
achieve_goal

1. After David used 1/4 of a string to tie a box, he had 150cm of the

string left.what was the length of the string at first?


2. June spent 2/5 of her money on a shirt and 5/6 of the remainder on a

pair of shoes. If she had $10 left. how much did she have at first?

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By: GIM (offline)  Monday, October 31 2011 @ 08:32 AM CDT  
GIM

Question 1

Used : 1/4
Left : 1 - 1/4 = 3/4
3/4L------150cm
1/4L------150 / 3 = 50cm
4/4L------ 50 x 4 = 200 cm (answer)

Question 2
Spent on shirt ----2/5Total
Remainder--------3/5Total

Spent on shoes----5/6 x 3/5Total =1/2Total
Left ------3/5Total - 1/2Total= 6/10 - 5/10 = 1/10T

1/10T-----$10
10/10T---$10 x 10 = $100(answer)

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By: GIM (offline)  Monday, October 31 2011 @ 08:32 AM CDT  
GIM

Question 1

Used : 1/4
Left : 1 - 1/4 = 3/4
3/4L------150cm
1/4L------150 / 3 = 50cm
4/4L------ 50 x 4 = 200 cm (answer)

Question 2
Spent on shirt ----2/5Total
Remainder--------3/5Total

Spent on shoes----5/6 x 3/5Total =1/2Total
Left ------3/5Total - 1/2Total= 6/10 - 5/10 = 1/10T

1/10T-----$10
10/10T---$10 x 10 = $100(answer)

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