Home
Class 12
MATHS
An A.P. Having odd number of terms has ...

An A.P. Having odd number of terms has its first, second and middle terms as -12,-7 and 38 respectively, then the sum of this A.P is

A

896

B

798

C

756

D

710

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROGRESSIONS

    MCGROW HILL PUBLICATION|Exercise Questions from Previous Years. AIEEE/JEE Main Papers|87 Videos
  • PROBABILITY

    MCGROW HILL PUBLICATION|Exercise Previous Years B-Architecture Entrance Examination Papers|21 Videos
  • QUADRATIC EQUATIONS

    MCGROW HILL PUBLICATION|Exercise Questions from previous Years. B - architecture entrance examination papers|16 Videos

Similar Questions

Explore conceptually related problems

If the first, second and the last terms of an A.P. are a,b,c respectively, then the sum of the A.P. is

The first,second and middle terms of an AP are a,b,c respectively.Their sum is

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

If the second term and the fourth terms of an A.P. are 12 and 20 respectively, then find the sum of first 25 terms:

If the first,second and nth terms of a A.P. are respectively a,b and c then prove that the sum of n terms of this series is

If the second and seventh terms of an A.P. are 2 and 22 respectively. Find the sum of first 35 terms:

An A.P. and a G.P. of positive terms have the same first term and the sum of their first, second and third terms are respectively, 1, 1/2 and 2. Show that the sum of their fourth terms is 19/2

If the 3rd and 7th terms of an A.P. are 17 and 27 respectively . Find the first term of the A.P.:

MCGROW HILL PUBLICATION-PROGRESSIONS-Questions from Previous Years. B-Architecture Entrance Examination Papers
  1. Find the sum of all numbers between 200 and 400 which are divisible...

    Text Solution

    |

  2. Let a,b and c be distinct real numbers. If a,b,c are in geometric prog...

    Text Solution

    |

  3. If the sum of first n terms of two A.P.'s are in the ratio 3n+8 : 7n+1...

    Text Solution

    |

  4. A tree, in each year grows 5 cm less than it grew in the previous year...

    Text Solution

    |

  5. If (48)/(2.3)+(47)/(3.4)+(46)/(4.5)+ . . . +(2)/(48.29)+(1)/(49.50) ...

    Text Solution

    |

  6. If log(10)2, log(10)(2^(x)-1) and log(10)(2^(x)+3) are three consecuti...

    Text Solution

    |

  7. If a, b, c are in H.P, b, c, d are in G.P, and c, d, e are in A.P, the...

    Text Solution

    |

  8. If sum(k=1)^n ɸ(k)=2n/(n+1),then sum(k=1)^10 1/(ɸ(k))is equal to

    Text Solution

    |

  9. Let a,b,c,d and e be distinct positive numbers. If a,b,c and 1/c,1/d...

    Text Solution

    |

  10. If the sum of first 15 terms of the series 3+7+14+24+37+... Is 15k, t...

    Text Solution

    |

  11. Let a1,a2,a3,a4,a5 be a G.P. Of positive real numbers such that A.M. ...

    Text Solution

    |

  12. In an ordered set of four numbers, the first 3 are A.P. And the last ...

    Text Solution

    |

  13. If e^((sin^2x+sin^4x+sin^6x+..." upto" oo)In 2) satisfies the equation...

    Text Solution

    |

  14. For distinct positive numbers a,b and c, if a^2,b^2,c^2 are in A.P. Th...

    Text Solution

    |

  15. If three real numbers a,b,c all greater than one, are in a geometrica...

    Text Solution

    |

  16. The sum first 19 terms of the series 1^2+2(2^2)+3^2+2(4^2)+5^2+... is ...

    Text Solution

    |

  17. In an increasing geometric series, the sum of the first and the sixth ...

    Text Solution

    |

  18. 1+2/3+6/(3^2)+10/(3^3)+14/(3^4)+

    Text Solution

    |

  19. An A.P. Having odd number of terms has its first, second and middle ...

    Text Solution

    |

  20. If Sn=sum(r=1)^(n)Tr=n(n+1)(n+2)(n+3)" then "sum(r=1)^(10) 1/Tr is equ...

    Text Solution

    |