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Quantitative Aptitude

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Time & Distance

Question
28 out of 35
 

A car travelled 20% of the time at a speed of 30 km/h 50% of the time at 40 km/h at the rest at 60 km/h. What is the average speed of the car over the entire journey?



A 40
B 42
C 44
D Cannot be determined
E None of these

Ans. B

Let total time taken = 100 hours

So, distance = 20 x 30 + 50 x 40 + 30 x 60

=600 + 2000 + 1800

=4400

Speed = 4400/100 = 44 km/h

Time & Distance Flashcard List

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