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A man riding a cycle at 12 km/hr can reach a town in 4 hours 30 minute. If he delayed by 1 hr. 30 min at the start, then in order to reach…

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A man riding a cycle at 12 km/hr can reach a town in 4 hours 30 minute. If he delayed by 1 hr. 30 min at the start, then in order to reach his destination in time he should ride with a speed of:

A15 km/hr
B16 km/hr
C18 km/hr
D20 km/hr

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Discussion 1

CCommunity15 May 2019

Speed = 12 km/hr and time = 4 + 30/60 = 9/2 hr

Total distance = 12 × 9/2 = 54km

Then,

Total time he has = 9/2 – 3/2 = 3hr

Speed of cycle = 54/3 = 18km/hr