Home
Class 14
MATHS
A student takes 1.25 hours to travel fro...

A student takes 1.25 hours to travel from home to school at a speed of 4 km/h. By what percentage should he increase his speed to reduce the time by 25% to cover the same distance from school to home?
एक छात्र को 4 किमी/घंटा की चाल से चलते हुए घर से विद्यालय पहुँचने में 1.25 घंटे लगते हैं | विद्यालय से घर तक इतनी ही दूरी तय करने के दौरान समय में 25% कटौती करने के लिए उसे अपनी चाल में कितने प्रतिशत की वृद्धि करनी चाहिए ?

A

a)0.45

B

b)0.5

C

c)0.25

D

d)`33 1/3` %

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SIMPLIFICATION

    PINNACLE|Exercise EXERCISE|250 Videos
  • SSC CGL MAINS 2018 ALGEBRA

    PINNACLE|Exercise Exercise|23 Videos
PINNACLE-SPEED AND DISTANCE-EXERCISE
  1. A train takes 2 1/2 hours less for a journey of 300 km, if its speed i...

    Text Solution

    |

  2. The distance between two stations, A and B is 428 km. A train starts f...

    Text Solution

    |

  3. A student takes 1.25 hours to travel from home to school at a speed of...

    Text Solution

    |

  4. Two cyclists X and Y start at the same time from place A to go towards...

    Text Solution

    |

  5. A train crosses a platform 180 m long in 60 sec at a speed of 72 km/h....

    Text Solution

    |

  6. Two cars A and B leave Delhi at 8:30 a.m. and 9 a.m. for Shimla, respe...

    Text Solution

    |

  7. The two trains leave Varanasi for Lucknow at 11:00 a.m. and at 11:30 a...

    Text Solution

    |

  8. X and Y are two stations which are 280 km apart. A train starts at a c...

    Text Solution

    |

  9. Amit travelled a distance of 50 km in 9 hours. He travelled partly on ...

    Text Solution

    |

  10. The distance between two stations, A and B is 575 km. A train starts f...

    Text Solution

    |

  11. Richa travels from A to B at the speed of 15 km/h, from B to C at 20 k...

    Text Solution

    |

  12. A man divided his journey into three parts of distances of 18 km, 20 k...

    Text Solution

    |

  13. A runner is running at a speed of 40 km/h. If he runs at a speed of 30...

    Text Solution

    |

  14. A train of length 350 m crosses a bridge of length 250 m in 20 seconds...

    Text Solution

    |

  15. The distance between two railway stations is 1176 km. To cover this di...

    Text Solution

    |

  16. The distance between the places H and O is D units. The average speed ...

    Text Solution

    |

  17. A train that is running at the speed of 72 km/h crosses an electric po...

    Text Solution

    |

  18. A train travels the distance between stations P and Q at a speed of 12...

    Text Solution

    |

  19. An athlete crosses a distance of 900 m in 10 minutes. What is his spee...

    Text Solution

    |

  20. Mohan covers a distance of 2.5 km by scooter at the rate of 30 km/h. T...

    Text Solution

    |