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21 Mar 2017, 05:31
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
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Question Stats:
89% (01:12) correct
11%
(01:49)
wrong
based on 158
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It takes Davis x hours to complete the Road Runners Holiday Road Race while running at R miles per hour. If it takes Hassan one hour less to complete the race, what is Hassans rate, in terms of R and x?
A. Rx/(x-1)
B. R/(2x+1)
C. R/(x-1)
D. (x-1)/R
E. (x-1)/(Rx)
A. Rx/(x-1)
B. R/(2x+1)
C. R/(x-1)
D. (x-1)/R
E. (x-1)/(Rx)
21 Mar 2017, 11:01
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Time Taken by Davis to complete the Road Runners Holiday Road Race = x hours
Rate at which Davis ran = R miles/hour
Total distance of the Road Runners Holiday Road Race = Rx miles
Time Taken by Hassan to complete the Road Runners Holiday Road Race = (x-1) hours
Let Speed of Hassan = H
H = Rx/(x-1) miles/hour
Answer is A. Rx/(x-1)
Rate at which Davis ran = R miles/hour
Total distance of the Road Runners Holiday Road Race = Rx miles
Time Taken by Hassan to complete the Road Runners Holiday Road Race = (x-1) hours
Let Speed of Hassan = H
H = Rx/(x-1) miles/hour
Answer is A. Rx/(x-1)
22 Mar 2017, 03:42
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Picking numbers
R=10 Total distance =100
x= 10 hours
hassan's time = 9 hours
hassan's speed = 100/9
adding the values we get to the answer choices (A)
R=10 Total distance =100
x= 10 hours
hassan's time = 9 hours
hassan's speed = 100/9
adding the values we get to the answer choices (A)
