Aptitude & Reasoning
Quantitative Aptitude
Objective
Nov 23, 2012
A man cover the first 160 km witha speed of 64 km/hr and the next distance 160 km with 80 km/hr. What is the average speed of man to caver the total distance ?
Detailed Explanation
Time taken = ( 160/64 + 160/80) = 9/2 hours
so the average speed is = 320/(9/2)= (320 * 2)/9 km/hr
71.11
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