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10 Jan 2016, 09:02
Kudos
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D
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Difficulty:
5%
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Question Stats:
91% (01:21) correct
9%
(01:30)
wrong
based on 86
sessions
History
Date
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If a man travels f miles an hour for t hours and r miles an hour for s hours, what is his average rate in miles per hour for the entire distance traveled?
A. ft + rs
B. (ft + rs)/2
C. t/f + s/r
D. (ft + rs)/(t + s)
E. (ft + rs)/(t - s)
A. ft + rs
B. (ft + rs)/2
C. t/f + s/r
D. (ft + rs)/(t + s)
E. (ft + rs)/(t - s)
Praveengeol
Joined: 02 Jun 2015
Last visit: 14 Nov 2017
Posts: 58
Given Kudos: 27
Location: United States
Concentration: Strategy, Human Resources
Schools: Schulich Sept"18 (A)
WE:Engineering (Manufacturing)
10 Jan 2016, 09:28
Kudos
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Bunuel
If a man travels f miles an hour for t hours and r miles an hour for s hours, what is his average rate in miles per hour for the entire distance traveled?
A. ft + rs
B. (ft + rs)/2
C. t/f + s/r
D. (ft + rs)/(t + s)
E. (ft + rs)/(t + s)
A. ft + rs
B. (ft + rs)/2
C. t/f + s/r
D. (ft + rs)/(t + s)
E. (ft + rs)/(t + s)
Average Speed = Total Distance /Total Time Taken
Total Distance travelled in t hours = ft
Total Distance travelled in s hours = rs
Total Time taken = t+s
Therefore , Average Speed = (ft+ts)/(t+s)
Answer D
Bunuel
If a man travels f miles an hour for t hours and r miles an hour for s hours, what is his average rate in miles per hour for the entire distance traveled?
A. ft + rs
B. (ft + rs)/2
C. t/f + s/r
D. (ft + rs)/(t + s)
E. (ft + rs)/(t + s)
A. ft + rs
B. (ft + rs)/2
C. t/f + s/r
D. (ft + rs)/(t + s)
E. (ft + rs)/(t + s)
Avg speed=Total Distance traveled/total time taken=(ft+rs)/t+s
Answer D
Bunuel-Answer D and E are the same-could you please make the correction?
