Home
Class 10
MATHS
A motor boat whose speed in still water ...

A motor boat whose speed in still water 15km/hr takes half an hour more to go 18km up stream than to returns dowm stream to the same spot.Find Speed of the stream.

Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EQUATION

    KALYANI PUBLICATION|Exercise EXERCISE|144 Videos
  • PYTHAGORAS THEOREM

    KALYANI PUBLICATION|Exercise EXERCISE|48 Videos
  • REAL NUMBERS

    KALYANI PUBLICATION|Exercise Exercise|12 Videos

Similar Questions

Explore conceptually related problems

A motor boat whose speed in still water 18km/hr takes 1 hour more to go 24km up stream than to returns dowm stream to the same spot.Find Speed of the stream.

A motor boat whose speed in still water 9km/hr takes three hours to go 12km dowm stream and come back.Find Speed of the stream.

Work Problem related to the form A/(ax+by)+B/(cx+dy)=k A boat goes 30 km upstream and 44 km downstream in 10 hours. It can go 40 km upstream and 55 km downstream in 13 hours. Find the speed of the boat in still water and speed of the stream.

A train travels 360 km at a uniform speed.If she had been 5 km/h more,it would have taken 1 hour less for the same journey.Find the speed of the train.

Work Problem related to the form A/(ax+by)+B/(cx+dy)=k A motorboat takes 6 hours to cover 100 km downstream and 30 km back. If the motorboat goes 75 km downstream and returns back to its starting point in 8 hours, find the speed of the motorboat in still water and speed of the stream.

Represent the following situations in the form of quadratic equations:(iv)A train travels a distance of 480 km at a uniform speed.If the speed had ben 8 km/h less,then it would have taken 3 hours more to cover the same distance.We need to find the speed of the train.

A car and a bus start from a place P at the same time and move non-stop towards a place where the distance between P and Q is 210 km. The car takes half an hour less than the bus to arrive Q. If the average speed of the car is 10 km/h more than that of the bus, find the average speed of the car and the bus.

An express train takes 1 hours less than a passenger train to travel 132 km between Mysore and Bangalore (without taking into consideration the time they stop at intermediate stations).If the average speed of the express train is 11km/h more than that of the passenger train,find the average speed of the two trains.

A train covered a certain distance at a uniform speed.If the train would have been 10 km/h faster,it would have taken 2 hours less than the scheduled time.And if the train were slower by 10 km/h,it would have taken 3 hours more than the scheduled time.Find the distance covered by the train.

Work Problem related to speed, distance and time The ratio of the speed A to B is 2:3 . If A takes 3 hours more then B to cover 30km . Find the speed of A and B.

KALYANI PUBLICATION-QUADRATIC EQUATION-EXERCISE
  1. A motor boat whose speed in still water 15km/hr takes half an hour mor...

    Text Solution

    |

  2. Which of the following is quadratic equation: x^2+sqrt2x+3=0.

    Text Solution

    |

  3. Which of the following is quadratic equation: 2x^2+3sqrtx+4=0

    Text Solution

    |

  4. Which of the following is quadratic equation: (x-1)^2=x-1

    Text Solution

    |

  5. Which of the following is quadratic equation: x^2=x

    Text Solution

    |

  6. Which of the following is quadratic equation: x^2+1/x=0

    Text Solution

    |

  7. Which of the following is quadratic equation: x(x+1)+7=(x+2)(x+3)

    Text Solution

    |

  8. Which of the following is quadratic equation: x^3-x^2=(x-1)^3

    Text Solution

    |

  9. Test which of the following is solutions of x^2-5x+6=0 i)2,ii)-3,i...

    Text Solution

    |

  10. Test which of the following is solutions of x^2-3x-10=0 i)2,ii)-5,...

    Text Solution

    |

  11. Test which of the following is solutions of x^2+3x-180=0 i)12,ii)1...

    Text Solution

    |

  12. Test which of the following is solutions of 6x^2-sqrt2x-2=0 i)-sqr...

    Text Solution

    |

  13. Test which of the following is solutions of x^2+x-306=0 i)17,ii)3,...

    Text Solution

    |

  14. If 3 is a root of the quadratic equation x^2-ax+8=0,find the value of ...

    Text Solution

    |

  15. If 1 is a root of the quadratic equation px^2+x+1/4=0,find the value o...

    Text Solution

    |

  16. If 2 is a root of the quadratic equation x^2-ax+8=0,find the value of ...

    Text Solution

    |

  17. If -3 is a root of the quadratic equation x^2+ax+6=0,find the value of...

    Text Solution

    |

  18. If -1/2 is a root of the quadratic equation 2x^2+ax-3=0,find the valu...

    Text Solution

    |

  19. Find the value of a and b for which x=2,3 are the roots of the equatio...

    Text Solution

    |

  20. If x=1/3,-1 are the roots of the equation ax^2+bx-1=0,find a and b.

    Text Solution

    |

  21. If x=11,7 are the roots of the equation ax^2+bx+77=0,find the value of...

    Text Solution

    |