This has to do with the month do date revenues at my work. I don't understand how it works and it's driving me crazy. X is the total amount owed for the new day when taking money in versus amount owed from rented rooms. Y is the ending balance still owed from the day before. Z is the total ending balance from X and Y. B is the total amount owed but it's Month to Date and C is the amount still owed when last month was over. Both Z's are suppose to be the same number. That's how we know if we did the math right. I hope I explained this well enough, becuase I just don't understand how this works and it's going to drive me crazy when my Z's don't match up each night and I don't think they should. No one I work with knows how this works, "They just know it always works"
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Question for the math experts (Hotel book keeping)
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Great GMAT question:
(X + Y) = (B + C)
C = X + Y - B
Since C is constant, then a change in any one variable requires a change in the opposite direction by at least one of the other variables. For instance, if X increases by 2, then Y must decrease by 2 OR C must increase by 2 OR Y must decrease by 1 and C must increase by 1 OR Y must decrease by 1 and X must decrease by 1.
Does this make sense? Yep.
Let's say on day 1 of the month:
X = 0
Y = 1000
C = 1000
B = 0
On the first day of every new month, Y = C since the amount owed for the last month is equal to the ending balance from the day before.
Now, someone rents a room for $100. So, both X and B increase by $100 and the equation balances. The person checks out after one day, X decreases by 100, but Y increases by 100 and B stays at 100 and the equation balance. If the person pays the 100, then Y decreases by 100 and B decreases by 100 and the equation balances.
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Originally posted by Curls4dGirls
Great GMAT question:
(X + Y) = (B + C)
C = X + Y - B
Since C is constant, then a change in any one variable requires a change in the opposite direction by at least one of the other variables. For instance, if X increases by 2, then Y must decrease by 2 OR C must increase by 2 OR Y must decrease by 1 and C must increase by 1 OR Y must decrease by 1 and X must decrease by 1.
Does this make sense? Yep.
Let's say on day 1 of the month:
X = 0
Y = 1000
C = 1000
B = 0
On the first day of every new month, Y = C since the amount owed for the last month is equal to the ending balance from the day before.
Now, someone rents a room for $100. So, both X and B increase by $100 and the equation balances. The person checks out after one day, X decreases by 100, but Y increases by 100 and B stays at 100 and the equation balance. If the person pays the 100, then Y decreases by 100 and B decreases by 100 and the equation balances.
That's exactly what I was gonna say. :agree:
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See I thought that this was too simple. At first I was like set them equal. I guess I look at things too complex.:hang:Originally posted by Curls4dGirls
Great GMAT question:
(X + Y) = (B + C)
C = X + Y - B
Since C is constant, then a change in any one variable requires a change in the opposite direction by at least one of the other variables. For instance, if X increases by 2, then Y must decrease by 2 OR C must increase by 2 OR Y must decrease by 1 and C must increase by 1 OR Y must decrease by 1 and X must decrease by 1.
Does this make sense? Yep.
Let's say on day 1 of the month:
X = 0
Y = 1000
C = 1000
B = 0
On the first day of every new month, Y = C since the amount owed for the last month is equal to the ending balance from the day before.
Now, someone rents a room for $100. So, both X and B increase by $100 and the equation balances. The person checks out after one day, X decreases by 100, but Y increases by 100 and B stays at 100 and the equation balance. If the person pays the 100, then Y decreases by 100 and B decreases by 100 and the equation balances.
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