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Friday, July 21 2017 @ 03:41 PM CDT
 Forum Index >  Test Paper Related >  Primary 5 Matters
 SA 2 maths question
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By: tictactoe (offline)  Tuesday, September 18 2012 @ 03:59 AM CDT (Read 1079 times)  
tictactoe

Hi please help with working solution.

The total length of two strings was 105cm. The difference in their lengths was 9cm. After cutting the same length of string from each piece, the length of the shorter piece became 2/5 of that of the longer piece. What was the length of string that was cut from each piece? (answer : 42cm)

thanks in advance

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By: eqkt (offline)  Tuesday, September 18 2012 @ 07:37 AM CDT  
eqkt

Long Short Difference
Amount Left 5 units 2 units 3 units-> 9cm

1 unit---> 9cm/ 3= 3cm

Long ---> 3cmx5=15cm

Short---> 3cmx2=6cm

15cm+6cm=21cm
105cm-21cm=84cm
84cm/2=42cm (ans)

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By: tictactoe (offline)  Wednesday, September 19 2012 @ 02:11 AM CDT  
tictactoe

Thanks for your help, eqkt

Smile

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