Question

A man walks 4 km at a speed of 2 kmph, runs 6 km at a speed of 2 kmph and goes by bus another 32 km. Speed of the bus is 8 kmph. Find the average speed of the man in kmph.

A 4(2/13) kmph Correct Answer Incorrect Answer
B 5(3/7) kmph Correct Answer Incorrect Answer
C 4(2/3) kmph Correct Answer Incorrect Answer
D 6(1/10) kmph Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Total distance = 4 + 6 + 32 = 42 km Time taken individually: => 4/2 = 2 hr => 6/2 = 3 hr => 32/8 = 4 hr Average speed of man = Total distance/ Total time => 42/9 = 4(2/3) kmph

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