Subject
Quantitative Aptitude
Topic
Speed & Distance
A salesman travels a distance of 70 miles in 5 hours. How much faster, in miles per hour, must he travel to make the same trip in 75 hours less than the original time?
A salesman travels a distance of 70 miles in 5 hours. How much faster, in miles per hour, must he travel to make the same trip in 75 hours less than the original time?
ক)
28খ)
24গ)
12ঘ)
None of theseExplanation
The salesman has to make it in (2.5 - 0.75)hrs = 1.75 hours Now, Original speed, s = 70/2.5 = 28 miles/hr Now, with the changed time, changed speed, S' = distance/ changed time S' = 70/1.75 = 40 mile/hr Now, change from the original speed = 40 - 28 = 12 mile/hrRelated questions
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