Home
Class 14
MATHS
A man can do a piece of work in 30 hours...

A man can do a piece of work in 30 hours. If he works with his son then the same piece of work is finished in 20 hours. If the son works alone he can do the work in

A

60 hours

B

50 hours

C

25 hours

D

10 hours

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • 2016 TIER-II PAPER(14)

    CHAMPION PUBLICATION|Exercise EXERCISE|100 Videos
  • 2016 TIER-II PAPER(16)

    CHAMPION PUBLICATION|Exercise EXERCISE|100 Videos
CHAMPION PUBLICATION-2016 TIER-II PAPER(15)-EXERCISE
  1. The sum of three consecutive even numbers is 28 more than the average ...

    Text Solution

    |

  2. In a division sum, the divisor'd is 10 times the quotient'd and 5 time...

    Text Solution

    |

  3. A man can do a piece of work in 30 hours. If he works with his son the...

    Text Solution

    |

  4. A water tap fills a tub in 'p' hours and a sink at the bottom empties ...

    Text Solution

    |

  5. John does (1)/(2) piece of work in 3 hours, Joe does (1)/(4) of the re...

    Text Solution

    |

  6. A does (2)/(5) of a work in 9 days. Then B joined him and they togethe...

    Text Solution

    |

  7. The daily wages of A and B respectively are Rs. 3. 50 and 2. 50. When ...

    Text Solution

    |

  8. A man does double the work done by a boy in the same time. The number ...

    Text Solution

    |

  9. The marked price of an article is 30% higher than the cost price. If a...

    Text Solution

    |

  10. A merchant marked the price of an article by increasing its production...

    Text Solution

    |

  11. A watch dealer pays 10% customs duty on a watch which costs Rs. 500 ab...

    Text Solution

    |

  12. A shopkeeper allows 20% discount on his advertised price and to make a...

    Text Solution

    |

  13. Rs. 2420 were divided among a,B C so that A:B=5:4andB:C=9:10 then C ...

    Text Solution

    |

  14. 49 Kg blended tea contain Assam and Darjeeling tea in the ratio 5:2 .t...

    Text Solution

    |

  15. Among 132 examines of a certain school , the ratio of successful and...

    Text Solution

    |

  16. In a regiment the ratio between the number of officers to soldiers was...

    Text Solution

    |

  17. Three containers have their volumes in the ratio 3 : 4 : 5. They are f...

    Text Solution

    |

  18. In what proportion must a grocer mix sugar at Rs.12 a kg and Rs.7 a kg...

    Text Solution

    |

  19. Fifteen movie theatres average 600 customers per theatre per day. If s...

    Text Solution

    |

  20. The average weight of A B and C Is 45 kg. If the average weight of A a...

    Text Solution

    |