Home
Class 12
MATHS
Find the sum to n terms of the A.P., who...

Find the sum to n terms of the A.P., whose `k^("th")` term is 5k + 1.

A

401

B

402

C

404

D

403

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|213 Videos
  • QUADRATIC EQUATIONS AND EXPRESSION

    HIMALAYA PUBLICATION|Exercise Question Bank|129 Videos

Similar Questions

Explore conceptually related problems

Find the sum to n terms of the series whose n^(th)" terms is n"(n+3) .

Find the sum to n terms of the series in whose n^(th) terms is given by n(n+1)(n+4)

Find the sum to n terms of the series in whose n^(th) terms is given by (2n-1)^2

Find the sum to n terms of the series in whose n^(th) terms is given by n^2+2^n

Find the sum of n terms of the series whose nth terms is (i) n(n-1)(n+1) .

Find the sum of first 20 terms of an AP whose nth term is a_(n) = 2-3n .

Find the 31^(th) term of an AP whose 11^(th) term is 38 and the 16th term is 73.

The first and the last term of an A.P are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum ? OR Find the sum of first 51 terms of an A.P whose 2nd term and 3rd term aer 14 and 18 respectively.

Find the sum of first 51 terms of an A.P whose second and third terms are 14 and 18 respectively.

HIMALAYA PUBLICATION-PROGRESSIONS-QUESTION BANK
  1. If (a^(n)+b^(n))/(a^(n-1)+b^(n-1)) is an G.M between a and b then the ...

    Text Solution

    |

  2. If the sum of first p terms of an A.P is equal to the sum of the first...

    Text Solution

    |

  3. Find the sum to n terms of the A.P., whose k^("th") term is 5k + 1.

    Text Solution

    |

  4. If the sum of n terms of an A . P is 3n^(2)+5n and its m^(th) term is ...

    Text Solution

    |

  5. The 12^(th) common terms between the series 3+7+11+.. And 1+6+11+.. .+...

    Text Solution

    |

  6. Find the sum of all two digit numbers which when divided by 4, yields ...

    Text Solution

    |

  7. The number of common elements to the two sequences 17,21,25, ...... 4...

    Text Solution

    |

  8. The sum of first 10 terms of the series : (x+(1)/( x))^(2) + ( x^(2)...

    Text Solution

    |

  9. The sum of the serieslebrge (1+2)+(1+2+2^(2))+(1+2+2^(2)+2^(3))+.. to ...

    Text Solution

    |

  10. If x,y,z are in A.P. and tan^(-1) x , tan^(-1) y and tan^(-1) z are a...

    Text Solution

    |

  11. If a, b, c respectively the p^(th), q^(th) and r^(th) elements of a G....

    Text Solution

    |

  12. If f(x) is a polynomial function of second degree. IF f(1) = f(-1) and...

    Text Solution

    |

  13. Let T(r ) be the rth term of an A.P. whose first term is a and common ...

    Text Solution

    |

  14. Let a, b, c be in A.P and |a|le1,|b|le1,|c|le1. If x=1+a+a^(2)+.... t...

    Text Solution

    |

  15. If a(1) , a(2), "……………" a(n) are in H.P., then the expression a(1) a(2...

    Text Solution

    |

  16. Let a(1) , a(2) , a(3) , "……………" be terms of an A.P. If (a(1) + a(2) +...

    Text Solution

    |

  17. The value of 2^(1//4).4^(1//8).8^(1//16)"…………." to oo is :

    Text Solution

    |

  18. In a geometric progression consisting of positive terms, each term equ...

    Text Solution

    |

  19. The first two terms of a geometric progression add upto 12. The sum of...

    Text Solution

    |

  20. Let two numbers have arithmetic mean 9 and geometric mean 4. Then thes...

    Text Solution

    |