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Trip A is 6x miles long and takes 5y hours. Trip B is 5x mil
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22 Nov 2017, 19:05
22 Nov 2017, 19:05
Expert Reply
00:00
Question Stats:
80% (00:57) correct
20% (00:54) wrong based on 35 sessions
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Trip A is 6x miles long and takes 5y hours. Trip B is 5x miles long and takes 4y hours.
A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal.
D. The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
The rate of trip A in miles per hour |
The rate of trip B in miles per hour |
A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal.
D. The relationship cannot be determined from the information given.
Drill 2
Question: 2
Page: 524
Question: 2
Page: 524
Re: Trip A is 6x miles long and takes 5y hours. Trip B is 5x mil
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29 Dec 2017, 13:13
29 Dec 2017, 13:13
Expert Reply
Explanation
Rate is calculated by dividing the distance traveled by the time elapsed. Plug In to compare the two rates. If you plug in x= 4 and y = 2, the rate for trip A will be:
\(\frac{6(4)}{5(2)}=\frac{24}{10}=2.4\) mph and the rate for trip B will be: \(\frac{5(4)}{4(2)}=\frac{24}{10}=2.4\) mph; eliminate choices (A) and (C).
Any set of values will have a greater rate for trip B, so select choice B.
Rate is calculated by dividing the distance traveled by the time elapsed. Plug In to compare the two rates. If you plug in x= 4 and y = 2, the rate for trip A will be:
\(\frac{6(4)}{5(2)}=\frac{24}{10}=2.4\) mph and the rate for trip B will be: \(\frac{5(4)}{4(2)}=\frac{24}{10}=2.4\) mph; eliminate choices (A) and (C).
Any set of values will have a greater rate for trip B, so select choice B.
gmatclubot
Re: Trip A is 6x miles long and takes 5y hours. Trip B is 5x mil [#permalink]
29 Dec 2017, 13:13
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