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November 01, 2025, 10:03:46 am
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Author Topic: help  (Read 1227 times)  Share 

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TyErd

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help
« on: October 31, 2010, 10:20:56 pm »
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How do you do this question? Its from number patterns.
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BSKT

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Re: help
« Reply #1 on: October 31, 2010, 10:29:27 pm »
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I got 500. Is that the answer?
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TyErd

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Re: help
« Reply #2 on: October 31, 2010, 10:43:44 pm »
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nah its 300mL
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jasoN-

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Re: help
« Reply #3 on: October 31, 2010, 10:47:18 pm »
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Okay you have 20% of 200 mL is detergeant. (ie. 40mL detergeant)
If you want to make it 8%
%
Know that 8% is 0.08


As you initially have 200 mL, you hence have to add 300 mL
« Last Edit: October 31, 2010, 10:51:37 pm by jasoN- »
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BSKT

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Re: help
« Reply #4 on: October 31, 2010, 10:54:22 pm »
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oh yeah sorry i forgot to minus the initial 200 >_<
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jasoN-

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Re: help
« Reply #5 on: October 31, 2010, 10:55:35 pm »
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Just cause i can, C1V1 = C2V2 also works =)
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dec0da

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Re: help
« Reply #6 on: October 31, 2010, 10:59:19 pm »
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:OMG I HATE THIS QUESTION !!!! oh i got it wrong and didn't know why, thanks ppls   :smitten:
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TyErd

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Re: help
« Reply #7 on: October 31, 2010, 11:01:41 pm »
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Quote from: jasoN- on October 31, 2010, 10:55:35 pm
Just cause i can, C1V1 = C2V2 also works =)

whats that?
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jasoN-

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Re: help
« Reply #8 on: October 31, 2010, 11:02:23 pm »
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sorry that is chemistry, i was just joking around
and to those who didn't get my method above
40/200 = 20%
therefore 40/x = 8%, where x is the total volume of water (0% conc) required
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TyErd

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Re: help
« Reply #9 on: October 31, 2010, 11:13:38 pm »
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Quote from: jasoN- on October 31, 2010, 11:02:23 pm
sorry that is chemistry, i was just joking around
and to those who didn't get my method above
40/200 = 20%
therefore 40/x = 8%, where x is the total volume of water (0% conc) required

oh lol ok. that method you just did makes it easier to understand. Thanks!
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