Question
‘A’ and ‘B’ can complete a certain work in 18
days and 20 days, respectively. They started working together and worked till completion of the work for which they got Rs. 19000 as wage. Find the share of ‘B’ out of total wage.Solution
Let total work = 180 units {LCM of (18 and 20)} Efficiency of ‘A’ = 180/18 = 10 units/day Efficiency of ‘B’ = 180/20 = 9 units/day Wages received by ‘A’ and ‘B’ will directly proportion to their efficiency. So share of ‘B’ = 19000 × (9/19) = Rs 9000
A train travels at an average speed of 100 km per hour without stoppage and with stoppages it covers the same distance at an average speed of 80 km/hr. ...
Train ‘A’ running with a speed of 108 km/hr crosses a vertical pole in 10 seconds. Find the approx. time taken by the train ‘A’ ...
Two trains running on parallel track with lengths 140 m and 40 m respectively. When travelling in opposite directions they are observed to pass each oth...
A goods train leaves a station at a certain time and at a fixed speed. After 10 hours, an express train leaves the same station and moves in the same di...
Speed of train A and train B is 90 km/hr and 36 km/hr respectively. They cross each other in 10 seconds when they are running in opposite directions. Le...
Train X (150 m) passes a platform of 210 m in 18 seconds. The ratio of the speed of train X to train Y is 2:3. Determine the length of train Y if it tak...
Two trains of same length are running in parallel tracks in the same direction with speed 90 km/hr and 120 km/hr respectively. The latter completely cro...
Train M, ‘x’ metres long crosses (x – 34) metres long platform in 15 seconds while train N having the length (x + 34) metres crosses the same plat...
A train can cross a pole in 18 seconds. When the length of the train is increased by 50 metres, it now takes 169 seconds to overtake a car running in th...
A person is walking at 4 m/sec in the same direction of a train. The train crosses him in 7 seconds. If train speed is 72 km/hr, find the time to cross ...
Relevant for Exams:
