Home
Class 8
MATHS
If a person travels 60 km at a speed of ...

If a person travels 60 km at a speed of 30 km/h and the next 120 km at a speed of 40 km/h then find the average speed of the person for the total journey .

Text Solution

Verified by Experts

The correct Answer is:
36 km/h
Promotional Banner

Topper's Solved these Questions

  • TIME AND DISTANCE

    PEARSON IIT JEE FOUNDATION|Exercise Test Your Concepts ( Short Answer Type Questions)|15 Videos
  • TIME AND DISTANCE

    PEARSON IIT JEE FOUNDATION|Exercise Test Your Concepts (Essay Type Questions)|5 Videos
  • TIME AND DISTANCE

    PEARSON IIT JEE FOUNDATION|Exercise Concept Application (Level 2 )|3 Videos
  • STATISTICS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL II) |29 Videos
  • TIME AND WORK PIPES AND CISTERNS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL-3)|7 Videos

Similar Questions

Explore conceptually related problems

A car travels 30 km at a uniform speed of 40 km//h and the next 30 km at a uniform speed of 20 km//h . Find its average speed.

A car covers a distance of 80 km at a speed of 60 km/hr and another 140 km at a speed of 70 km/hr Find the average speed of the journey

A car travels 100 km at a speed of 60 km/h and returns with a speed of 40 km/h. Calculate the average speed for the whole journey.

A travels 15 km with a speed of 30 km/h. He another 25 km with a speed of 10 km/h. What is his average speed for the entire journey?

A bus covers the first 10km of its journey at an average speed of 40 km/h and the remaining 45 km at an speed of 60 km/h. The average speed of the bus for its total journey is

A bus covers the first 10 km of its journey at an average speed of 40 km/h and the remaining 45 km at an speed of 60 km/h. The average speed of the bus for its total journey is

A man travels 200 km distance with the speed of 40 m/s and next 50 km with the speed of 10 m/s . Find the average speed of man.

A train travels the first 15 km at a uniform speed of 30 km/h, the next 75 km at a uniform speed of 50 km/h, and the last 10 km at a uniform speed of 20 km/h. Calculate the average speed for the entire train journey.

PEARSON IIT JEE FOUNDATION-TIME AND DISTANCE -Test Your Concepts (Very Short Answer Type Questions)
  1. The time taken for two trains of lengths, a metres and b metres, runni...

    Text Solution

    |

  2. Two bodies move away from each other with speeds of 10 km/h and 5 km/h...

    Text Solution

    |

  3. The time taken by a train l metres long running at x km/h to pass a ma...

    Text Solution

    |

  4. The time taken by the faster train of length a metres running at x km/...

    Text Solution

    |

  5. A train 120 m long is running with a speed of 64 km/h . What time is t...

    Text Solution

    |

  6. If the speed of a boat downstream is x km/h and the speed upstream is ...

    Text Solution

    |

  7. The speed of a boat in still water is 9 km/h and the speed of the stre...

    Text Solution

    |

  8. If the speed of a boat in still water is u km/h and the speed of the ...

    Text Solution

    |

  9. The speed of a boat downstream is 9 km/h and the speed upstream is 5 k...

    Text Solution

    |

  10. The speed of a boat downstream is 9 km/h and the speed upstream is 5 k...

    Text Solution

    |

  11. A person covers a distance of 300 km in 6 h by travelling at a constan...

    Text Solution

    |

  12. How long does a train 300 m long travelling at a speed of 54km/h take ...

    Text Solution

    |

  13. What time does a train 200 m long take to cross a bridge 800 m long i...

    Text Solution

    |

  14. An employee, travelling at 20 km/h reaches his office half - an - hou...

    Text Solution

    |

  15. A thief is travelling at a speed of 90 km/h in a car, whereas a police...

    Text Solution

    |

  16. If a person travels 60 km at a speed of 30 km/h and the next 120 km at...

    Text Solution

    |

  17. A bus travelling at 45 km/h takes 3 h more than that of another bus tr...

    Text Solution

    |

  18. Two stations A and B are 500 km away. If two buses each start from sta...

    Text Solution

    |

  19. Find the ratio of the times taken for a train 300 m long and travell...

    Text Solution

    |

  20. If a train travelling at 54 kmph crosses a boy stand - ing on a plat...

    Text Solution

    |