Seems easy; can't isolate %

M

MrGuy

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May 2, 2013
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I am having a problem with, what I thought to be, a really simple question. I have been at it for a while now but my numbers never equal out...and here I am.

I'll just list the problem as simply as I can:

I sell 10 Candy Bars a week. I sell 64% more Candy bars on the weekend than I do M-F. I need to know how many candy bars I sell M-F and how many I sell on S-S.

I started by 10/7 (but that already has the 64% spread across M-F, so those numbers aren't right from the get-go.) and then have gone through numerous iterations trying to find the proper value for M-F +64% for S-S.

I'm pretty embarrassed, to be honest. I look at this problem and the answer is "right there" but when I start to disect the numbers, it doesn't end up on paper the way it seems it should go in my head haha...which is to say, the right way.

Any help would be great.
 
MrGuy said:
I am having a problem with, what I thought to be, a really simple question. I have been at it for a while now but my numbers never equal out...and here I am.

I'll just list the problem as simply as I can:

I sell 10 Candy Bars a week. I sell 64% more Candy bars on the weekend than I do M-F. I need to know how many candy bars I sell M-F and how many I sell on S-S.

I started by 10/7 (but that already has the 64% spread across M-F, so those numbers aren't right from the get-go.) and then have gone through numerous iterations trying to find the proper value for M-F +64% for S-S.

I'm pretty embarrassed, to be honest. I look at this problem and the answer is "right there" but when I start to disect the numbers, it doesn't end up on paper the way it seems it should go in my head haha...which is to say, the right way.

Any help would be great.
Click to expand...

I'll do a similar problem:

I sell 450 Candy Bars a week. I sell 50% more Candy bars on the weekend than I do M-F. I need to know how many candy bars I sell M-F and how many I sell on S-S.

Let

# of candy bars sold M-F = N

# of candy bars sold S-S = 1.5 * N

Total candies sold M-S = N + 1.5 * N = 2.5 * N

Then

450 = 2.5 * N

N = 180.....................................Candies sold M-F and 270 candies sold S-S

Follow the same procedure. However, your problem may not get integer answer.
 
Subhotosh Khan said:
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Click to expand...

Denis said:
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Click to expand...

Thanks everyone for the help with this. I really appreciate the help.

Basically, what we end up with selling is ~.756/day M-F & 3.105/day S-S.


This whole thing started with me trying to figure out an avg weekly sales problem, which showed a boost over the weekend...

The results of that were that this candy bar(s) accounted for 12.2% of the weekly sales (M-F) and 20% of the sales (S-S)...thus achieving a ~64% boost over the weekend (at least THAT part is right...right?).

I picked "10" as a movement (sales) # off the top of my head (probably not the best start there...) and two pages of chicken scratches later...I'm talking to you on a math-help forum lol.

Thanks again. I truly appreciate everyone's time on this (including the PM). :)

MrGuy
 
Denis said:
c = candy bars sold during M-F; then 1.64c are sold during weekend
c + 1.64c = 10
2.64c = 10
c = 10/2.64 = 125/33 = sold M-F
10 - 125/33 = 330/33 - 125/33 = 205/33 = sold during weekend.

If you want a non-fraction example: 66 bars per week will do it.
66 / 2.64 = 25
Got that?

Gotta go...got a toothache :???:
Click to expand...

where does 2.64 come from? Rather, how does c+1.64c = 2.64 (which is then *c)? Is there an intro-intro sub-forum... :(
 
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