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Monday, July 24 2017 @ 09:49 AM CDT
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 help needed to solve a problem
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By: wonderwork (offline)  Wednesday, April 22 2009 @ 07:37 PM CDT (Read 2384 times)  
wonderwork

Hi friends,

Could any one help me to solve this problem.

mrs.Tan and mrs.Lee has 180 strawberries altogether. After mrs.Tan gave 13 strawberries to mrs.lee, she has 5 times as many strawberries as mrs.lee. how many strawberries did mrs. tan have at first?

Help me with the hints how to solve these kinds of problems. Thanks for your help.

Many thanks,

wonderwork.

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By: c7c2000 (offline)  Wednesday, April 22 2009 @ 11:39 PM CDT  
c7c2000

6 units is 180

Draw model to solve Smile

Then find at first...

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By: leongmart (offline)  Thursday, April 23 2009 @ 12:58 AM CDT  
leongmart

After :
Ms Tan: |==|==|==|==|==| 5 units
Ms Lee: |==| 1 units

Total = 6 units
Total = 180 strawberries
1unit = 180/6 = 30 strawberries

Before :
Ms Tan = 5 units + 13 = 150 +13 =163 strawberries
Ms Lee=1 unit - 13 = 30 - 13 = 17 strawberries

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By: wonderwork (offline)  Friday, April 24 2009 @ 01:30 AM CDT  
wonderwork

Hi leongmart,

The solution is more detailed. Thanks a lot for your kind help. I'm grateful to you for sharing your knowledge with us.

Thanks.


Regards
wonderwork.

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By: pearldyn (offline)  Thursday, June 25 2009 @ 11:13 AM CDT  
pearldyn

Hi,

But I still wonder why do we have to divide first instead of minus the 13 first?

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By: dolphin (offline)  Sunday, June 28 2009 @ 08:52 PM CDT  
dolphin

Quote by: pearldyn

Hi,

But I still wonder why do we have to divide first instead of minus the 13 first?



Hi
The total number of strawberries remains the same.Hope this helps.

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By: tangzhimian01 (offline)  Monday, June 29 2009 @ 03:03 AM CDT  
tangzhimian01

Mrs Tan and Mrs.Lee had 180 strawberries altogether.
After Mrs.Tan gave 13 strawberries to Mrs.Lee, [Action: Minus 13 (1st]
she had 5 times as many strawberries as Mrs.Lee [Result: Total of 6 Times (2nd)].
How many strawberries did Mrs. Tan have at first?

As you are working backwards, so you act on 2nd (First) {6 Times) - So now Divide by 6.
Then act on 1st (Second) (Miuse 13) - So now add 13[/u[/b]].

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By: pearldyn (offline)  Monday, June 29 2009 @ 08:48 AM CDT  
pearldyn

Wow!
What a great help both of you have been. I didnt realize until these has been explained.
If only I have internet during my school years. I will definitely use this as a tool for my son.

Thank you for all the help! May god bless you both.

Sincerely,
Fidah Razz

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