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Two men, A and B, run a 4km race on a circular course of 1/4 km. If their speeds are in the ratio of 5:4, how often does the winner pass the other?
Answer is (c).
Answer is (c).
See lessTwo trains A and B start from stations X and Y towards each other. B leaves station Y half an hour after train A leaves station X. Two hours after train A has started, the distance between trains A and B is 19th/30 of the distance between stations X and Y. How much time would it take each train (Aand B) to cover the distance X to Y, if train A reaches half an hour later to its destination as compared to B?
Answer is (c).
Answer is (c).
See lessA train travelling at 10m/s from A to B at 7 am meets a train leaving B at 7:20 am and coming to A at a speed 1/3 times faster than the first train. If the distance from A to B is 68km. Then, at what distance from A will the two trains meet?
Answer is (b).
Answer is (b).
See lessA monkey climbing up a greased pole ascends 10 metres snd slips down 2 metres in alternate minutes. If the pole is 64 metres high, how long will it take him to reach the top?
Answer is (b).
Answer is (b).
See lessEveryday Sachin exercises for 2*1/2 hours. He exercises by walking, jogging and running. His speeds while walking, jogging and running in the ratio 1:2:4.Which of the following statements are true?
Answer is (c).
Answer is (c).
See lessA policeman goes after a thief who has a 100m start. The policeman runs 1km in 6 minutes and the thief 1km in minutes. How far did the thief go before he was overtaken?
Answer is (c).
Answer is (c).
See lessA train overtakes 2 persons walking at 2km/hr and 4km/hr respectively in the same direction and completely passes them in 9 seconds and 10 seconds. Length of the train and its speed in km/hr respectively are
Answer is (d).
Answer is (d).
See lessThere are 2 inlet pipes and an outlet pipe. The efficiency of one of the inlet pipes is double than that of the other. Also, the efficiency of the outlet pipe is half that of the lesser efficient inlet pipe. The empty tank gets filled in 16 hours when all the pipes are opened. How many hours will be taken to fill the empty tank when the ‘lesser’ efficiency inlet pipe is plugged and the rest kept opened?
Answer is (b).
Answer is (b).
See lessPipes P, Q and R are attached to a tank and each can act as either an inlet or outlet pipe. Pipes P, Q and R respectively take 8,10 and 12 hours to fill the empty tank or empty the full tank. In the first hour, pipes P and R work as inlet and Q work as outlet. In the second hour, pipes P and Q work as inlet and pipe R as outlet. In the third hour pipes Q and R work as inlet and pipes P as outlet and the process goes on like this. When will the cistern be filled?
Answer is (c).
Answer is (c).
See lessPipe A can fill a cistern in 36 minutes and B in 48 minutes. If both the pipes are opened together, when should pipe B be closed so that the cistern may be just full in 24 minutes?
Answer is (d).
Answer is (d).
See less