Time and Work Quiz 08

  1. A and B can do a work in 15 days and 20 days respectively. They work on alternate days, if a starts the work then the work is completed in how many days?





  1. 6 men and 5 boys working together can do 2 times as much work per hour as 2 men and 3 boys working together. Compare the work of a man with t hat of boy?





  1. 40 men can do a work in 36 days working 10 hrs per day. In how many days the work could be finished if 30 men working 12 hrs a day/





  1. A does half as much work as B in three fourth of the time. If together they take 15 days to complete the work, how much time shall B take to do t?





  1. A can build up a wall in 10 days but B can break it in 4 days. If A starts the work after 5 days B also joins with him he works only for 3 days. Then the remaining part of wall can be build by an in how many days?





  1. How many days will 1648 persons take to construct a bridge, if 721 persons can build the same in 48 days?





Twenty pumps can empty a reservoir in 12 hours. In how many hours can 45 such pumps d the same work





  1. If 1800 persons can finish the construction of a building in 40 days, how man persons are needed for the construction of the building in 24 days?





  1. A stock of food grains is enough for 500 persons for 8 weeks. How long will the same stock last for 400 persons (in weeks)?





  1. A shop keeper has just enough money to buy 52 cycles worth Rs 525 each. If each cycle were to cost Rs 21 more than how many cycles would he be able to buy with that amount?







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