Home
Class 10
MATHS
An A.P. has 21 terms. If its 11^(th) ter...

An A.P. has 21 terms. If its `11^(th)` term is 25, sum of all the term is :

A

525

B

550

C

575

D

625

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NUMBERS AND SEQUENCES

    PREMIERS PUBLISHERS|Exercise ACTIVITIES|9 Videos

  • MENSURATION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS|16 Videos

  • RELATIONS AND FUNCTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS|25 Videos

Similar Questions

Explore conceptually related problems

An A.P. consists of 31 terms. If its 16th terms is m, then the sum of all the terms of this A.P. is

An A.P. consists of 31 terms. If its 16th terms is m, then the sum of all the terms of this A.P. is

In an A.P., 1^(st) terms is 1 and the last term is 20. The sum of all terms is 399 then n = …………. A)42 B)38 C)21 D)19

In an A.P., first term is -5 and last term is 45. If sum of all the numbers in the A.P. is 120, then how many terms are there? What is the common difference.

If an A.P. has its second term as 15, third term as 27 its fifth term is :

In an A.P. 19^(th) term is 52 and 38^(th) term is 128, Find sum of first 56 terms.

If the first term of a G.P. is 729 and its 7^(th) term is 64, then the sum of first seven terms is

An A.P. consists of 23 terms. If the sum of the three terms Is the middle is 141 and the sum of the last three terms is 261, then the first is

The number of terms of an A.P. is even; the sum of the odd terms is 24, and of the even terms is 30, and the last term exceeds the first by 21/2 then the number of terms in the series is 8 b. 4 c. 6 d. 10

PREMIERS PUBLISHERS-NUMBERS AND SEQUENCES-OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS
  1. Use Euclid Division Algorithm to find the Highest Common Factor (H.C.F...

    Text Solution

    |

  2. Find a and b such that a^(b) xx b^(a) = 5184

    Text Solution

    |

  3. We say that n is congruent to r modulo m if :

    Text Solution

    |

  4. If 59-=3 (mod 7) ,46 -=4 (mod 7) then 105 -= …. (mod 7 ), 13-=…. (mod ...

    Text Solution

    |

  5. The remainder when 7 xx 13 xx 19 xx 23 xx 29 xx 31 is divided by 6 is ...

    Text Solution

    |

  6. Find the least positive value of x such that 197 -= (x + 3) (mod 5).

    Text Solution

    |

  7. Find x if 10^(4) -= x (mod 23)

    Text Solution

    |

  8. What is the time 100 hours after 6 am ?

    Text Solution

    |

  9. The n^(th) term of the sequence 4, 7, 12, 19, … is

    Text Solution

    |

  10. In an A.P. with first term 'a' and common difference 'd' t(2n) - t(n) ...

    Text Solution

    |

  11. If an A.P. has its second term as 15, third term as 27 its fifth term ...

    Text Solution

    |

  12. No. of terms is the A.P.2,5,8,11,…..110 is :

    Text Solution

    |

  13. In the A.P. 3,5,7,…43, find the middle term :

    Text Solution

    |

  14. If 7 + k, 22 -k " and " 5k + 5 are in A.P. , then k is ,

    Text Solution

    |

  15. What is the sum of first n natural numbers ?

    Text Solution

    |

  16. If the 3^(rd) term of a G.P. is 4/3 " and " 6^(th) " term is " 32/81 f...

    Text Solution

    |

  17. An A.P. has 21 terms. If its 11^(th) term is 25, sum of all the term i...

    Text Solution

    |

  18. Find the no. of terms in the G.P. 4,8,16,….512.

    Text Solution

    |

  19. Find x if 4,x, 9 are in G.P:

    Text Solution

    |

  20. Find the sum 4 + 1 + 1/4 + …. " to " infty.

    Text Solution

    |