31 .
Two trains of equal length, running with the speeds of 60 and 40 kmph, take 50 seconds to cross each other while they are running in the same direction. What time will they take to cross each other if

A. | 10 sec | B. | 9 sec |

C. | 8 sec | D. | 7 sec |

32 .
If a train, travelling at a speed of 90 kmph, crosses a pole in 5 sec, then the length of train is?

A. | 104 m | B. | 125 m |

C. | 140 m | D. | 152 m |

33 .
A train 100 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?

A. | 32 kmph | B. | 36 kmph |

C. | 40 kmph | D. | 48 kmph |

34 .
A 180 meter long train crosses a man standing on the platform in 6 sec. What is the speed of the train?

A. | 90 kmph | B. | 108 kmph |

C. | 120 kmph | D. | 88 kmph |

35 .
Excluding stoppages, the speed of a train is 45 kmph and including stoppages it is 36 kmph. Of how many minutes does the train stop per hour?

A. | 10 min | B. | 11 min |

C. | 12 min | D. | 13 min |

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