Question
If a man cycles at 10 km/hr, then he arrives at a
certain place at 1 p.m .If he cycles at 15 km/hr, he will arrive at the same place at 11 am At what speed must he cycle to get there at noon?Solution
Let the total distance be = x km As per question, x/10-x/15=2 hours x = 60 kms If he cycles at the speed of 10 km/hr. so he take = 60/10= 6 hours So he starts his journey at = 7 am and to reach place at 12 pm he should cycles at the speed of = 60/5=12 km/hr
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