Home
Class 10
MATHS
The first and last terms of an A.P. a...

The first and last terms of an A.P. are 1 and 11. If the sum of its terms is 36, then the number of terms will be (a) 5          (b) 6          (c) 7          (d) 8

Promotional Banner

Topper's Solved these Questions

  • AREAS RELATED TO CIRCLES

    RD SHARMA|Exercise All Questions|251 Videos
  • CIRCLES

    RD SHARMA|Exercise All Questions|131 Videos

Similar Questions

Explore conceptually related problems

The first and last terms of an A.P. are 1 and 7 . If the sum of its terms is 36 , then the number of terms will be

The first and last terms of an A.P.are 1 and 11 If the sum off its ter4msis 36 then the number if terms will be 5 b.8 c.6 d.7

4.If the first and last terms of an A.P.are 1 and 11 respectively and the sum of its terms is 30. find the number of terms in the A.P.

The first and last terms of an A.P. are - 7 and 233 and the sum of the A.P. is 9153. Find the number of terms in the A.P.:

The first term of an A.P. is 5 and the last term is 45. If the sum of all the terms in 400. the number of terms is

7^(th) term of an A.P. is 40. Then, the sum of first 13 terms is

First term of an A,P is -5 and its last term is 45 If the sum of these terms is 120 find the number of terms.

The sum of first 8 terms and first 24 terms of an A.P. are equal. Find the sum of its 32 terms.

RD SHARMA-ARITHMETIC PROGRESSIONS-All Questions
  1. If the sum of P terms of an A.P. is q and the sum of q terms ...

    Text Solution

    |

  2. The sum of n terms of an AP is 3n^2+nand its common difference is 6,th...

    Text Solution

    |

  3. The first and last terms of an A.P. are 1 and 11. If the sum of its...

    Text Solution

    |

  4. If the sum of n terms of an A.P., is 3n^2+5n then which of its terms i...

    Text Solution

    |

  5. If the sum of n terms of an A.P. is 2n^2+5n , then its n t h ter...

    Text Solution

    |

  6. If the sum of three consecutive terms of an increasing A.P. is 51 a...

    Text Solution

    |

  7. If four numbers in A.P. are such that their sum is 50 and the great...

    Text Solution

    |

  8. Let Sn denote the sum of n terms of an AP whose first term is a. If co...

    Text Solution

    |

  9. If the first, second and last term of an A.P. are a ,\ b and 2a res...

    Text Solution

    |

  10. If S1 is the sum of an AP of 'n' odd number of terms and S2 be the sum...

    Text Solution

    |

  11. If in an A.P., Sn=n^2p and Sm=m^2p , where Sr denotes the sum of...

    Text Solution

    |

  12. Let Sn denotes the sum of the first of n terms of A.P. and S(2n)=3Sn ...

    Text Solution

    |

  13. in an AP , Sp=q , Sq=p and Sr denotes the sum of the first r terms. Th...

    Text Solution

    |

  14. If Sr denotes the sum of the first r terms of an A.P. Then, S(3n...

    Text Solution

    |

  15. If the first term of an A.P. is 2 and common difference is 4, then ...

    Text Solution

    |

  16. The number of terms of the A.P. 3,\ 7,\ 11 ,\ 15 ,\ ddot to be take...

    Text Solution

    |

  17. Sum of n terms of the series sqrt(2)+sqrt(8)+sqrt(18)+sqrt(32)+\ dd...

    Text Solution

    |

  18. The 9t h term of an A.P. is 449 and 449th term is 9. The term which...

    Text Solution

    |

  19. The n t h term of an A.P., the sum of whose n terms is Sn , is Sn+S...

    Text Solution

    |

  20. The common difference of an A.P., the sum of whose n terms is Sn , i...

    Text Solution

    |