Home
Class 10
MATHS
The sum of n terms of an A.P. is 3n^2...

The sum of `n` terms of an A.P. is `3n^2+5n` , then 164 is its (a) 24th term (b) 27th term (c) 26th term (d) 25th term

Text Solution

AI Generated Solution

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 sum of n terms of an AP is 3n^2+5n ,then find its 16th term.

The sum of n terms of an A.P. is n^(2) + 3n . Find its 20th term.

If the sum of n terms of an AP is n^2-2n then find its n^(th) term

If the sum of first n terms of an A.P. is 3n^(2)-2n , then its 19th term is

If the sum of n terms of an A.P is 2n+3n^(2) , find the r^(th) term

If sum of n terms of an A.P. is 4n^(2) +7n , find the 15^(th) term.

If sum of n terms of an A.P. is n^(2)+13 , find its 13^(th) term.

If sum of n terms of an AP is 3n^2+n . Find its 10^(th) term.

If the sum of terms of an AP is 2n^(2)+5n, then the n^(th) term will be

RD SHARMA-ARITHMETIC PROGRESSIONS-All Questions
  1. The 9t h term of an A.P. is 449 and 449th term is 9. The term which...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  4. If the sums of n terms of two arithmetic progressions are in the...

    Text Solution

    |

  5. If Sn denote the sum of n terms of an A.P. with first term a and...

    Text Solution

    |

  6. If the first term of an A.P. is a and n t h term is b , then its c...

    Text Solution

    |

  7. The sum of first n odd natural numbers is 2n-1 (b) 2n+1 (c) n^2 ...

    Text Solution

    |

  8. Two A.P.’s have the same common difference. The first term of one o...

    Text Solution

    |

  9. If 18 ,\ a ,\ b ,\ -3 are in A.P., the a+b= (a) 19 (b) 7 (c) 11 (d...

    Text Solution

    |

  10. If (5+9+13+\ ddotto\ n\ t e r m s)/(7+9+11+\ ddotto\ (n+1)t e r m s)=(...

    Text Solution

    |

  11. The sum of n terms of an A.P. is 3n^2+5n , then 164 is its (a) 2...

    Text Solution

    |

  12. If the n^(t h) term of an A.P. is 2n+1 , then the sum of first n...

    Text Solution

    |

  13. If 18 t h and 11 t h term of an A.P. are in the ratio 3\ :2 , then ...

    Text Solution

    |

  14. The sum of first 20 odd natural numbers is (a) 100       (b) 210  ...

    Text Solution

    |

  15. The common difference of the A.P. is 1/(2q),(1-2q)/(2q),(1-4q)/(2q)...

    Text Solution

    |

  16. The common difference of the A.P. 1/3,(1-3b)/3,(1-6b)/3,\ dot is 1/...

    Text Solution

    |

  17. The common difference of the A.P. 1/(2b),(1-6b)/(2b),(1-12 b)/(2b),......

    Text Solution

    |

  18. If k ,\ 2k-1 and 2k+1 are three consecutive terms of an A.P., the va...

    Text Solution

    |

  19. The next term of the AP sqrt(7), sqrt(28), sqrt(63),… is

    Text Solution

    |

  20. The first three terms of an A.P. respectively are 3y-1,\ 3y+5 and 5y...

    Text Solution

    |