Question
A person sees a train passing over 2 km long bridge. The
length of the train is half that of bridge if the train clears the bridge in 6 mins. What is the speed of the train?Solution
Distance covered in 6/60 hours = (2 + 2/2) = 3 km Distance covered in 1 hour = 3 x (60/6) = 30 km So, speed of the train = 30 km/hr
The LCM of two natural numbers is 15 times their HCF. If the product of given two numbers is 2160, then find the LCM of the numbers.Â
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