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A computer retailer sells only TFT and LCD monitors. In the graph abov
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26 Dec 2014, 08:37
26 Dec 2014, 08:37
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Difficulty:
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Question Stats:
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37%
(01:57)
wrong
based on 420
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Tough and Tricky questions: Word Problems.
A computer retailer sells only TFT and LCD monitors. In the graph above, the x-axis represents the day of the week and the y-axis represents the number of monitors sold. On which day was the ratio of the number of LCD monitors sold to the total number of monitors sold the greatest?
A. Monday
B. Tuesday
C. Wednesday
D. Thursday
E. Friday
Kudos for a correct solution.
Attachment:
2014-12-26_1936.png [ 7.5 KiB | Viewed 7425 times ]
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Re: A computer retailer sells only TFT and LCD monitors. In the graph abov
[#permalink]
26 Dec 2014, 09:42
26 Dec 2014, 09:42
To calculate the share of LCD monitors in total monitor sales, we first need to determine the number of LCD sales. Note that the total number of display sales is directly shown in the graph, but the number of LCD display sales needs to be calculated as the difference of total monitors and TFT monitors.
We get the following values:
\(Mon: \frac{10}{18}, Tue: \frac{10}{22}, Wed: \frac{12}{24}, Thu: \frac{10}{26}, Fri: \frac{12}{26}\).
Now we can compare the figures and see that all values, except of Wednesday's number are smaller than \(\frac{1}{2}\). Answer C it is.
We get the following values:
\(Mon: \frac{10}{18}, Tue: \frac{10}{22}, Wed: \frac{12}{24}, Thu: \frac{10}{26}, Fri: \frac{12}{26}\).
Now we can compare the figures and see that all values, except of Wednesday's number are smaller than \(\frac{1}{2}\). Answer C it is.
Re: A computer retailer sells only TFT and LCD monitors. In the graph abov
[#permalink]
26 Dec 2014, 17:42
26 Dec 2014, 17:42
Bunuel wrote:
Tough and Tricky questions: Word Problems.
A computer retailer sells only TFT and LCD monitors. In the graph above, the x-axis represents the day of the week and the y-axis represents the number of monitors sold. On which day was the ratio of the number of LCD monitors sold to the total number of monitors sold the greatest?
A. Monday
B. Tuesday
C. Wednesday
D. Thursday
E. Friday
Kudos for a correct solution.
Attachment:
2014-12-26_1936.png
LCD sales on each day = Mon-8. Tue-10 Wed-12 Thu-10 Fri-12
Ratio: Monday - 8/18
Tuesday - 10/22
Wednesday - 12/24
Thursday - 10/26
Friday - 12/26
Simplifying that Wednesday has the greatest ratio of LCD sales out of total sales
Ans C
