Source: GMAT Prep
It takes Carlos 9 minutes to drive from home to work at an average rate of 22 miles per hour. How many minutes will it take Carlos to cycle from home to work along the same route at an average rate of 6 miles per hour?
A. 26
B. 33
C. 36
D. 44
E. 48
The OA is B
It takes Carlos 9 minutes to drive from home to work at an
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t takes Carlos 9 minutes to drive from home to work at an average rate of 22 miles per hour.BTGmoderatorLU wrote:Source: GMAT Prep
It takes Carlos 9 minutes to drive from home to work at an average rate of 22 miles per hour. How many minutes will it take Carlos to cycle from home to work along the same route at an average rate of 6 miles per hour?
A. 26
B. 33
C. 36
D. 44
E. 48
The OA is B
We can use this information to determine the distance to work
First we'll have to convert 9 minutes to 9/60 hours (simplify to get: 3/20 hours)
distance = (rate)(time)
So, distance = (22)(3/20 hours) = 66/20 = 33/10 miles
How many minutes will it take Carlos to cycle from home to work along the same route at an average rate of 6 miles per hour?
time = distance/rate
So, time = (33/10)/6 = (33/10)(1/6) = 33/60 HOURS = 33 MINUTES
Answer: B
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BTGmoderatorLU wrote:Source: GMAT Prep
It takes Carlos 9 minutes to drive from home to work at an average rate of 22 miles per hour. How many minutes will it take Carlos to cycle from home to work along the same route at an average rate of 6 miles per hour?
A. 26
B. 33
C. 36
D. 44
E. 48
The OA is B
Converting 9 minutes to 9/60 of an hour, we see that the distance to work is 9/60 x 22 = 3/20 x 22 = 3/10 x 11 = 33/10 miles.
Thus, it will take Carlos (33/10)/6 = 33/60 hours, or 33 minutes, to cycle to work,.
Answer: B
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