Home
Class 14
MATHS
A covers half of his disttance with 20 k...

A covers half of his disttance with 20 km/h and rest with 30 km/h.What is the average speed during the whole journey?

A

20 km/h

B

24 km/h

C

25 km/h

D

26 km/h

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • TIME AND WORK

    QUANTUM CAT|Exercise QUESTION BANK |202 Videos

  • TRIGONOMETRY

    QUANTUM CAT|Exercise QUESTION BANK|118 Videos

Similar Questions

Explore conceptually related problems

A covers half of his distance with 20 km/h and rest with 30 km/h. What is the average speed during the whole journey?

A man covered half of the distance at 3x km/h and rest at 5x km/h. What is the average speed of the man?

A covered half of his journey at 20 km/h and rest at 60 km/h. What is the average speed of the man?

A man covered half of the distance at 3x km/h and rest at the 5x km/h.What is the average speed of man?

During a journey of 80 km a train covers first 60km with a speed of 40 km/h and completes the remaining distance with a speed of 20 km/h. What is the average speed of the train during the whole journey?

Jammutavi express leaves Jammu for Kanya Kumari at 120 km/h and returns to Jammu at 80 km/h. What is the average speed of the train during the whole journey?

A man covers first half of its journey at 12 km/hr and the rest at 4 km/hr. His average speed is

A' goes 10 km distance with average speed of 6 km/h while rest 20 km he travels with an average speed of 15 km/h. What is the average speed of 'A' during the whole journey?

Kiran covers a certain distance 80 km/h and returns back to the same point at 20 km/h. Then, the average speed during the whole journey be

QUANTUM CAT-TIME, SPEED AND DISTANCE-QUESTION BANK
  1. What is the angle between the two hands of a clock at 7:35?

    Text Solution

    |

  2. A' goes 10 km.distance with average speed of 6km/hr while rest 20 km h...

    Text Solution

    |

  3. A covers half of his disttance with 20 km/h and rest with 30 km/h.What...

    Text Solution

    |

  4. A covers 1/3rd of his journey at the speed of 10 km/h and half of the ...

    Text Solution

    |

  5. A covers 1/4th of his journey at 20 km/h and 1/3rd of the rest at 25 k...

    Text Solution

    |

  6. A covered half of his journey at 20 km/h and rest at the x km/h then h...

    Text Solution

    |

  7. A man covered half of the distance at 3x km/h and rest at the 5x km/h....

    Text Solution

    |

  8. A person goes to his office at 1/3rd of the speed at which he returns ...

    Text Solution

    |

  9. A person X starts from lucknow and another person Y starts from Kanpur...

    Text Solution

    |

  10. A person X starts from lucknow and another person Y starts from Kanpur...

    Text Solution

    |

  11. Two persons A and B started from two different places towards each oth...

    Text Solution

    |

  12. A person P is at X and another person Q is at Y.The distance between X...

    Text Solution

    |

  13. A person P is at X and another person Q is at Y.The distance between X...

    Text Solution

    |

  14. A person P is at X and another person Q is at Y.The distance between X...

    Text Solution

    |

  15. A person P is at X and another person Q is at Y.The distance between X...

    Text Solution

    |

  16. A person P is at X and another person Q is at Y.The distance between X...

    Text Solution

    |

  17. A person P is at X and another person Q is at Y.The distance between X...

    Text Solution

    |

  18. A persons P starts his journey from A and another person Q starts his ...

    Text Solution

    |

  19. A persons P starts his journey from A and another person Q starts his ...

    Text Solution

    |

  20. A persons P starts his journey from A and another person Q starts his ...

    Text Solution

    |