# Problems on Trains Questions

A) 60 | B) 62 |

C) 64 | D) 65 |

Explanation:

Relative speed = m / sec = kmph = 112 kmph.

Speed of goods train = (112 - 50) kmph = 62 kmph.

A) 48 | B) 24 |

C) 38 | D) 36 |

Explanation:

Less Cogs more turns and less time less turns

Number of turns required=80 × × = 24 times

A) 69.5 km/hr | B) 70 km/hr |

C) 79 km/hr | D) 79.2 km/hr |

Explanation:

Let the length of the train be x metres and its speed by y m/sec.

Then,

Now,

8y + 264 = 20y

y = 22.

Speed = 22 m/sec =km/hr = 79.2 km/hr.

A) 10 | B) 8 |

C) 6 | D) 4 |

Explanation:

Distance = 110 m

Relative speed = 60 + 6 = 66 kmph (Since both the train and the man are in moving in opposite direction)

= m/sec = m/sec

Time taken to pass the man = = 6 s

A) 10 | B) 25 |

C) 12 | D) 20 |

Explanation:

Speed of train 1 = = 12 m/sec

Speed of train 2 = = 8 m/sec

if they travel in opposite direction, relative speed = 12 + 8 = 20 m/sec

distance covered = 120 + 120 = 240 m

time = distance/speed = 240/20 = 12 sec