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Tuesday, September 19 2017 @ 12:05 PM CDT
 Forum Index >  Test Paper Related >  Primary 3 Matters
 P3 math Q
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By: chino (offline)  Thursday, September 02 2010 @ 08:07 PM CDT (Read 2068 times)  
chino

Amy and Bell had $26 altogether at first. After spending $4, Amy received $5 from Bell. They have the same amount of money now.
How much did Amy have at first ?

my ans is
26 divided by 2 = 13
13 + 4 - 5 = 12

model answer is 26 - 4 = 22
22 divide by 2 = 11
11 + 4 - 5 = 10

Can u help to explain if u agree with the model answer.
Thank you.

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By: geok551 (offline)  Friday, September 03 2010 @ 08:12 AM CDT  
geok551

Since we do not know Amy and Bell's sharings, we will have to minus the amt spent by Amy from the total, that's
26 - 4 = 22
Now they have equal share, therefore
22/2 = 11
Amy has 11 only when Bell gave her 5, therefore
11-5 = 6
To get what Amy had at first, you have to add back what she had spent, that's is
6 + 4 =10

Hope this is clear.

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By: chino (offline)  Sunday, September 05 2010 @ 05:15 AM CDT  
chino

i got it finally-thanks geok551

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By: rathanackumr (offline)  Monday, September 06 2010 @ 01:16 AM CDT  
rathanackumr

Model drawing attached. cheers


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By: TEOTECKWAH (offline)  Sunday, October 17 2010 @ 02:54 AM CDT  
TEOTECKWAH

i got the answer. it is $10 Big Grin

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