Subject
Quantitative Aptitude
Topic
Speed & Distance
An ambulance travels 10 miles at a speed of 75 miles per hour. How fast must the ambulance travel on the trip if the round-trip travel time is to be 20 minutes?
An ambulance travels 10 miles at a speed of 75 miles per hour. How fast must the ambulance travel on the trip if the round-trip travel time is to be 20 minutes?
ক)
50 mphখ)
55 mphগ)
60 mphঘ)
None of theseExplanation
On the forward trip, The ambulance travels, 75 miles in 60 mintues 10 miles in 60*10/75 minutes = 8 minutes Now, to complete the round trip in 20 minutes, the ambulance must travel back to the first place in (20-8) mintues = 12 minutes Now, On the reverse trip, the ambulance, in 12 minutes travels 10 miles thus, in 60 minutes travels 10*60/12 &nbsRelated questions
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