CAT Exam

an avg speed of 48 km/hr the time taken to cover the 1st 60% of the distance is 10 min more than the time taken to cover the remaining distance,how far is his office

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CAT Other Question
There are four machines in a factory. At exactly 8 pm, when the mechanic is about to leave the factory, he is informed that two of the four machines are not working properly. The mechanic is in a hurry, and decides that he will identify the two faulty machines before going home, and repair them next morning. It takes him twenty minutes to walk to the bus stop. The last bus leaves at 8:32 pm. If it takes six minutes to identify whether a machine is defective or not, and if he decides to check the machines at random, what is the probability that the mechanic will be able to catch the last bus?
A)0 B)1/6 C)1/4 D)1/3 E)1 there are 8 bags of rice looking alike,7 of which have equal weight and one is slightly heavier,the weighing balance is of unlimted capacity.using this balance,the mininmum number of weighings required to identify the heavier bag is