Home
Class 10
MATHS
200 logs are stacked in the following ma...

200 logs are stacked in the following maner:20 logs in the bottom row,19 in the next row,18 in the row next to it and so on (see figure).In how many rows the 200 logs are placed and how many logs are in the top row?

Promotional Banner

Topper's Solved these Questions

  • ARITHMETIC PROGRESSION

    R G PUBLICATION|Exercise EXERCISE|122 Videos

  • AREAS RELATED TO CIRCLES

    R G PUBLICATION|Exercise EXERCISE|65 Videos

  • CIRCLES

    R G PUBLICATION|Exercise EXERCISE|34 Videos

Similar Questions

Explore conceptually related problems

In how many ways can 5 boys and 3 girls stand in a row such that no two girls are together?

There are 7 boys and 3 girls in a class. In how many ways can they be arranged in a row such that no two girls are together?

In how many ways can 7 boys and 5 girls be arranged in a row so that no two girls come together?

In a military camp the major has to arrange 1764 soldiers in a square shape such that the number of solidiers along the length and breath are equal. How many soldiers are there in each row?

In how many ways can seven person be seat in a row of seats if two persons insist on sitting next to each other?

How many regular pieces of wood of length 2m.breadth 2.5cm and thickness 4 cm.can be obtained from a log of wood of length 6m.,breadths 15cm and thickness 40 cm.?

R G PUBLICATION-ARITHMETIC PROGRESSION-EXERCISE
  1. In a school,students thought of planting tress in and around the schoo...

    Text Solution

    |

  2. A spiral is made up of successive semicircles,with centers alternately...

    Text Solution

    |

  3. 200 logs are stacked in the following maner:20 logs in the bottom row,...

    Text Solution

    |

  4. In a potato race a bucket is placed at the starting point which is 5 m...

    Text Solution

    |

  5. Which term of the AP:121,117,113,….,is its first negative term?

    Text Solution

    |

  6. The sum of the third and the seventh terms of an AP is 6 and their pro...

    Text Solution

    |

  7. A ladder has rungs 25 cm apart.(see Fig.)The rungs decrease uniformly ...

    Text Solution

    |

  8. The houses of a row are numbered consecuitively from 1 to 49.Show that...

    Text Solution

    |

  9. Define arithmetic Progression.

    Text Solution

    |

  10. Find the nth term of 6,8,10,….

    Text Solution

    |

  11. Write the common difference of an A.P.Whose nth term is an=3n+7

    Text Solution

    |

  12. The first term of an AP.is 6 and the common difference is 2,then deter...

    Text Solution

    |

  13. Find the 20th term from the last term of the AP:3,8,13,….253.

    Text Solution

    |

  14. Find the value of x if 2x,x+10 and 3x+2 are in A.P.

    Text Solution

    |

  15. If x,2x+p and 3x+6 are three consecutive terms of an A.P.then find the...

    Text Solution

    |

  16. Find the sum of first n even natural numbers.

    Text Solution

    |

  17. Find the sum of first twelve multiple of 7.

    Text Solution

    |

  18. If the sum of n terms of an A.P is Sn=3n^2+5nthen find the Common diff...

    Text Solution

    |

  19. If 4/5,a,2 are three consecutive terms of an A.P.then a= a)5/4 b)9/5...

    Text Solution

    |

  20. The first term of an AP is a and its common difference is d then its 1...

    Text Solution

    |