Time and Distance Questions Answers

Time and Distance Questions Answers (MCQ) listings with explanations includes questions of calculating time, distance, speed etc using short cut formulas which are important for many competitive exams.

21) A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. Find the average speed for first 320 km of to

  • 1) 70.11 km/hr
  • 2) 71.11 km/hr
  • 3) 72.11 km/hr
  • 4) 73.11 km/hr
View Answer View Explanation
Ans.   B
Explanation :
We know Time = Distance/speed So total time taken = \begin{aligned} \left(\frac{160}{64}+\frac{160}{80}\right) \= \frac{9}{2} hours \\text{ Time taken for 320 Km = } \320*\frac{2}{9} = 71.11 km/hr \end{aligned}
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