11 .
Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman?

A. | 2:3 | B. | 4:3 |

C. | 3:4 | D. | 3:2 |

12 .
A and B can do a piece of work in 6 2/3 days and 5 days respectively. They work together for 2 days and then A leaves. In how many days after that B will complete the work alone.

A. | 2 days | B. | 1 ½ days |

C. | 3 days | D. | 3 ½ days |

13 .
4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?

A. | 35 | B. | 40 |

C. | 45 | D. | 50 |

14 .
A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was compl

A. | 12 days | B. | 10 days |

C. | 14 days | D. | 8 days |

15 .
A and B can do a piece of work in 12 days and 16 days respectively. Both work for 3 days and then A goes away. Find how long will B take to complete the remaining work?

A. | 15 days | B. | 12 days |

C. | 10 days | D. | 9 days |

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