Question

How many km per hour does a man walk who passes through a street 1400 m long in 12 minutes?

A 2 km/hr Correct Answer Incorrect Answer
B 4 km/hr Correct Answer Incorrect Answer
C 7 km/hr Correct Answer Incorrect Answer
D 5 km/hr Correct Answer Incorrect Answer
E none of these Correct Answer Incorrect Answer

Solution

Distance = 1400 m, Time = 12 minutes = 12 × 60 = 720 seconds, Speed = ? Speed = (Distance )/(Time ) = (1400 )/720 × (18 )/(5 ) = 7 km/hr

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