Pipe A alone can fill a tank in 8 hours. Pipe B alone can fill it in 6 hours. If both the pipes are opened and after 2 hours pipe A is closed, then the other pipe will fill the tank in….

6 hours | ||

3 1/2 hours | ||

4 hours | ||

2 1/2 hours |

A and B together can do a piece of work in 12 days which B and C together can do in 16 days. After A has been working at it for 5 days and B for 7 days, C finishes it in 13 days. In how many days B could finish the work?

48 days | ||

24 days | ||

16 days | ||

12 days |

A tap drips at a rate of one drop/sec. 600 drops make 100 ml. The number of litres wasted in 300 days is….

4320000 | ||

432000 | ||

43200 | ||

4320 |

If 5 men or 7 women can earn Rs 5,250 per day, how much would 7 men and 13 women earn per day?

Rs 11,600 | ||

Rs 11,700 | ||

Rs 16,100 | ||

Rs 17,100 |

A can complete a piece of work in 18 days, B in 20 days and C in 30 days. B and C together start the work and are forced to leave after 2 days. The time taken by A alone to complete the remaining work is….

10 days | ||

12 days | ||

15 days | ||

16 days |

Working 5 hours a day, A can complete a work in 8 days and working 6 hours a day, B can complete the same work in 10 days. Working 8 hours a day, they can jointly complete the work in….

3 days | ||

4 days | ||

4.5 days | ||

5.4 days |

If A and B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complete the work?

60 | ||

45 | ||

40 | ||

30 |

If two persons, with equal abilities, can do two jobs in two days, then 100 persons with equal abilities can do 100 similar jobs in….

100 days | ||

10 days | ||

5 days | ||

2 days |

If 28 men complete 7/8 of a piece of work in a week, then the number of men, who must be engaged to get the work completed in one week is….

5 | ||

6 | ||

4 | ||

3 |

A Boy and girl together fill a cistern with water. The boy pours 4 litres of water every 3 minutes and the girl pours 3 litres every 4 minutes. How much time will it take to fill 100 litres of water in the cistern?

36 minutes | ||

42 minutes | ||

48 minutes | ||

44 minutes |