math question >:(

[Gordz]

Hi lads... annoying question really getting to me.

I have 4L of 25%
I have 1L of 10%

mixing them together gives me what % nitro content?!

 

[ohmygahitscoby]

I think 16.25%. I'm bad at math.

 

[mr_bob]

i wanna say its going to be 22% cause its 4 parts 25% and 1 part 10% so ((4*25)+10)/5 gives me 22% but yeah i might be wrong my math aint that great havent had math in years and don't need to use that kinda stuff anymore

 

[ohmygahitscoby]

Mine is wrong.

Mr. bob - if you add 4 liters of 25 percent together, it's still 25 percent. You thought if you add them all together, its 100, but its still 25. So I guess you get 17.5% nitro.



wait: It would be best if you just do it like this. Just mix 1L of each instead of 4L of one and 1L of the other.



EDIT: I think I got it. 25% + 10% = 35% divided by 2 = 17.5 + 25% = 42.5 divided by 2 = 21.25 + 25 = 46.25 divided by 2 = 23.175 +25 - 48.175 divided by 2 = 24.825% Nitro!

 

[frickenjoey]

22% Nitro----I am on board with you Mr. Bob
Think of Nitro volume.
In 4 liters of 25% nitro fuel there is one liter of nitro.
In one liter of 10% fuel there is .1 liter of nitro
Add them together you get 1.1 liters of nitro
Now, when the two fuels are mixed, I now have 5 liters of fuel of which 1.1 liters is nitro
1.1L / 5L=.22 or 22% nitro
That is how it figures out for me.....other ideas folks?:yes:

 

[robmob]

24.0625% Nitro

 

[Cupooterluvr]

i wanna say its going to be 22% cause its 4 parts 25% and 1 part 10% so ((4*25)+10)/5 gives me 22% but yeah i might be wrong my math aint that great havent had math in years and don't need to use that kinda stuff anymore

+1

It's basically just an average problem. Add all the parts together and divide by the number of parts.

 

[robmob]

EDIT: I think I got it. 25% + 10% = 35% divided by 2 = 17.5 + 25% = 42.5 divided by 2 = 21.25 + 25 = 46.25 divided by 2 = 23.175 +25 - 48.175 divided by 2 = 24.825% Nitro!

This is the correct formula to figure this out.

There is a math error I noted in red (should read 23.125) which is why the correct answer is 24.0625%.

 

[sweetdiesel]

I'm with Joe and Bob, I see it as 22 %

4/5 x 25% = 20%
1/5 x 10% = 2%

5/5 = 22%

 

[robmob]

I was wrong.

After looking at SD's logic, I see it now.

Also, according to this calculator the answer is 22%.

http://www.handymath.com/cgi-bin/chemcalcc.cgi?submit=Entry

 

[Mattyfats420]

i got 22% also on that question

 

[Rolex]

Pay attention and take notes. This WILL be on the final.

 

[Cupooterluvr]

Pay attention and take notes. This WILL be on the final.

Why would this be on the History final?

 

[billym9]

i also got 22 and I'm an ace in math.

 

[CharliesTheMan]

You guys are crazy, the answer is NONE, because ice cream doesn't have any bones.

 

[Gordz]

lmao, yeah thanks guys. 22%... perfect. the wacker at the store sold me a litre of 10% and told me to break it in on that. THEN i read the manual. haha, won't go back there I guess!

cheers fellas

 

[Rolex]

The guy at the store is an idiot. You should break it in on the same fuel you plan to run it with.

 

[CharliesTheMan]

If I were you, I would save that liter of 10% and use it for stuff like cleaning air filters and soaking engine parts, and just break it in and run on 20%

 

[Monkey Wrench]

i also got 22 and I'm an ace in math.

That's good to know, because your grammar sucks! :constipat

 

[frickenjoey]

That's good to know, because your grammar sucks! :constipat

Damn, you go. har har har. Thanks I needed a giggle.