I drove 60 km at 30 kmph and then an additional 60 km at 50 kmph. Compute my average speed over my 1 - 37 1/2Explanation : Time reqd for the first 60 km = 120 min.; Time reqd for the second 60 km = 72 min.; Total time reqd = 192 min Avg speed = (60*120)/192 = 37 1/2. - Quantitative Interview Questions and Answers

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Question: I drove 60 km at 30 kmph and then an additional 60 km at 50 kmph. Compute my average speed over my 120 km

Answer: 37 1/2Explanation : Time reqd for the first 60 km = 120 min.; Time reqd for the second 60 km = 72 min.; Total time reqd = 192 min Avg speed = (60*120)/192 = 37 1/2.

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Question: I drove 60 km at 30 kmph and then an additional 60 km at 50 kmph. Compute my average speed over my 120 km

Answer:

37 1/2Explanation : Time reqd for the first 60 km = 120 min.; Time reqd for the second 60 km = 72 min.; Total time reqd = 192 min Avg speed = (60*120)/192 = 37 1/2.
Source: CoolInterview.com

30 km travels in 1hr
60 " " " 2 "

50 km travels in 1 hr
60 " " " 1.2 "
In 3.2 hrs the man goes 120 km
" 1 " " " " 1200/32 "
=75/2
=37.5 km
Velocity of the man is=37.5 km/hr. Source: CoolInterview.com

Answered by: Kamal Chandra Mondal | Date: 6/21/2010 |

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