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The average age of (husband, wife, child) before 3 years=24 Total age of (husband, wife, child) before 3 years=24×3=72 Total age of (husband, wife, child) present =72+9=81 years. The average age of husband and child before 4 years=19 years Total age of Wife and child before in present = (19×2) +8 = 46 years so now the age of the Husband= is 81-46=35 years
Two trains running in a opposite directions crosses pole in 84s and 57s respectively and they cross each other in 72s. Find the ratio of their speeds?
Two trains, 'A' and 'B', are heading towards each other from opposite ends of a 360-meter bridge. Train 'A' travels at a speed of 15 m/s, and train 'B' ...
A goods train leaves a station at a certain time and at a fixed speed. After 9 hours, an express train leaves the same station and moves in the same dir...
A train 200 m long running at 54 km/hr takes 40 seconds to cross a bridge. The length of the bridge is
Train ‘A’ can cross a pole in 4 seconds and a 150 metre long platform in 10 seconds. If the ratio of length of train ‘A’ and train ‘B’ is 2:...
Train M, ‘x’ metres long crosses (x – 30) metres long platform in 20 seconds while train N having the length (x + 30) metres crosses the same plat...
Time is taken by two trains running in opposite directions to cross a man standing on the platform in 30 seconds and 20 seconds respectively. It took 24...
A train of length ‘x’ m crosses a ‘x + 360’ m long platform in 60 seconds. If the train crosses a tree in 18 seconds, then find the value of ‘...
A person sees a train passing over 5 km long bridge. The length of the train is half that of bridge if the train clears the bridge in 6 mins. What is th...
Two poles are positioned at a certain distance from each other. A train traveling at a speed of 90 km/hr passes the first pole in 5 seconds and reaches ...
