566 .
In a stream running at 2 Kmph, a motor boat goes 10 Km upstream and back again to the starting point in 55 minutes. Find the speed of motor boat in still water?

A. | 22 kmph | B. | 27 kmph |

C. | 34 kmph | D. | 41 kmph |

567 .
A man rows to a place 48 Km distance and back in 14 hours. He finds that he can row 4 Km with the stream in the same time 3 Km against the stream. The rate off the stream is?

A. | 1 Kmph | B. | 2 Kmph |

C. | 3 Kmph | D. | 4 Kmph |

568 .
A man can row 8 Kmph in still water. If the velocity of the current is 2 Kmph and it takes him 2 hours to row to a place and come back. How far is the place?

A. | 1.5 km | B. | 3.5 km |

C. | 5.5 km | D. | 7.5 km |

569 .
In an hour a boat goes 10 Km along the stream and 4 Km against the stream. The speed of the boat in still water (in Kmph) is:

A. | 1 Kmph | B. | 3 Kmph |

C. | 7 Kmph | D. | 11 Kmph |

570 .
Walking at the rate of 4 kmph a man cover certain distance in 2 hr 45 min. Running at a speed of 16.5 kmph the man will cover the same distance in.

A. | 40 min | B. | 18 min |

C. | 48 min | D. | 14 min |

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