Home
Class 11
MATHS
If the sum of certain number of terms of...

If the sum of certain number of terms of the AP 25,22,19,........is 116, then find the last term.

Promotional Banner

Topper's Solved these Questions

  • Relations and Functions

    MAXIMUM PUBLICATION|Exercise EXAMPLE|104 Videos
  • SETS

    MAXIMUM PUBLICATION|Exercise EXAMPLE|115 Videos

Similar Questions

Explore conceptually related problems

Find the sum of first 11 terms of the sequence 20,25,30.......

If the sum of the first 2n terms of the A.P. 2, 5, 8, ..., is equal to the sum of the first n terms of A.P. 57, 59, 61. .... then n equals

Find the sum to 15 terms of the AP 3,7,11,……

Prove that the number of terms in the A.P. 3,6,9,….111 is 37

Find the n^(th) term of the A.P 84, 80,76,.....

Find the sum to 20 terms of the AP 10,7,4,……

Find the sum to 81 terms of the AP-1, 1/4 , 3/2 ,……

Find the sum of the first n-terms of the series. 2+22+222+…..

If the sum of 12 th and 22nd terms of an AP is 100 then the sum of the first 33 terms of the AP is

MAXIMUM PUBLICATION-SEQUENCE AND SERIES-EXAMPLE
  1. In an AP, if the m^th term is 'n' and the n^th term is 'm', prove tha...

    Text Solution

    |

  2. Find the sum to n terms of the series. 1xx2+2xx3+3xx4+4xx5+............

    Text Solution

    |

  3. If the sum of certain number of terms of the AP 25,22,19,........is 11...

    Text Solution

    |

  4. Find the sum to n terms of the series 1xx2xx3+2xx3xx4+3xx4xx5+.........

    Text Solution

    |

  5. The 3^rd term of the sequence whose n^th term is (3/2)^(n+1)…………….

    Text Solution

    |

  6. Insert three numbers between 1 and 256 so that the resulting sequence ...

    Text Solution

    |

  7. If p^th term of an AP is 'q' and q^th term is 'p', where p ne q find r...

    Text Solution

    |

  8. Geometric mean of 16 and 4 is …………..

    Text Solution

    |

  9. Find the sum to n terms of the series: 5+55+555+………..

    Text Solution

    |

  10. Find the sum of n terms of the AP, whose K^th term is ak=5K+1.

    Text Solution

    |

  11. If the first three terms of an AP is x-1,x+1,2x+3, then x is……….

    Text Solution

    |

  12. Find the sum to n terms of the series. 1xx2+2xx3+3xx4+4xx5+............

    Text Solution

    |

  13. The nth term of the GP 5,-5/2,5/4,-5/8……………. is 5/(1024). Find 'n'.

    Text Solution

    |

  14. The nth term of the GP 5,25,125, ......

    Text Solution

    |

  15. Find the sum of all natural numbers between 200 and 1000 which are mul...

    Text Solution

    |

  16. Find the sum of the first n terms of the series whose nth term is n(n+...

    Text Solution

    |

  17. Which among the following represents the sequence whose n^th terms is ...

    Text Solution

    |

  18. Using progression, find the sum of first five terms of the series 1+2/...

    Text Solution

    |

  19. Calculate: 0.6+0.66+0.666+..... n terms.

    Text Solution

    |

  20. The sum of the infinite series 1, 1/3, 1/9,……… Is…………….

    Text Solution

    |