Home
Class 12
MATHS
In an A.P, 7^(th) element is (1)/(21) an...

In an A.P, `7^(th)` element is `(1)/(21)` and `21^(st )` element is `(1)/(7) .` Then `147^(th)` element is

A

a.1

B

b.2

C

c.21

D

d.147

Text Solution

Verified by Experts

The correct Answer is:
A
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

Let a and d are respectively first and the common difference of an A.P. The 5^(th) element is (1)/(9) and the 9^(th) element is (1)/(5) . Then,

The 8^(th) element and 20^(th) element of an A.P are 22 and 46 respectively. The 18^(th) element is

If the p^(th) term of an A.P. is (1)/(q) and q^(th) term is (1)/( p) , show that the sum of pq terms is ((pq+1) )/(2) .

If 5 times of the 5^(th ) element of an A.P is equal to 9 times the 9^(th) element, then 14^(th) element of the A . P is

If the sum of 4^(th) and 8^(th) elements of A.P is 24 and the sum of 6^(th) and 10^(th) elements of 34 , then the common difference is

In an A.P if m^(th) term is n and n^(th) term is m, where mnen, find the p^(th) term .

If x, 2 x+2,3 x+3 are in G.P, then 5^(th) element is

Sum of 25^(th) and 5^(th) elements of an A.P is

The first term of a G.P is 3 and 6^(th) element is (3)/(32), then if P is the product of 6 elements, then P^(2)=

HIMALAYA PUBLICATION-PROGRESSIONS-QUESTION BANK
  1. Let a and d are respectively first and the common difference of an A.P...

    Text Solution

    |

  2. Let a and d are respectively first and the common difference of an A.P...

    Text Solution

    |

  3. In an A.P, 7^(th) element is (1)/(21) and 21^(st ) element is (1)/(7) ...

    Text Solution

    |

  4. The first and last element of an A.P are 7 and 55 respectively. The su...

    Text Solution

    |

  5. If 5 times of the 5^(th ) element of an A.P is equal to 9 times the 9^...

    Text Solution

    |

  6. Sum of 25^(th) and 5^(th) elements of an A.P is

    Text Solution

    |

  7. If the sum of 4^(th) and 8^(th) elements of A.P is 24 and the sum of 6...

    Text Solution

    |

  8. The 12^(th) element from the end of A.P,3,8,13, .., 253 is

    Text Solution

    |

  9. The 8^(th) element and 20^(th) element of an A.P are 22 and 46 respect...

    Text Solution

    |

  10. Which of the element of A.P 4, 5 (1)/(3), 6(2)/(3), .... is 104

    Text Solution

    |

  11. If the ratio of the sums of the n elements of two arithmetic progressi...

    Text Solution

    |

  12. a, b, c are in A . P, x is G . M between a and b, y is the G.M between...

    Text Solution

    |

  13. If (a-1) is the G.M between (a-2) and (a+1) then a=

    Text Solution

    |

  14. If a, b, c are in geometric progression then log a^(n), log b^(n), log...

    Text Solution

    |

  15. The first term of a G.P is 3 and 6^(th) element is (3)/(32), then if P...

    Text Solution

    |

  16. The first and the n^(th) elements of a G.P are respectively a and b an...

    Text Solution

    |

  17. a, b, c are in A.P, b, c, d are in G.P and c, d, e are in H.P, then a,...

    Text Solution

    |

  18. For what values of x, the numbers -2/7 , x, -7/2 are in G.P ?

    Text Solution

    |

  19. The value of n for which ( a ^(n+1) +b^(n+1))/( a^(n) + b^(n)) is the...

    Text Solution

    |

  20. If (a^(n)+b^(n))/(a^(n-1)+b^(n-1)) is an G.M between a and b then the ...

    Text Solution

    |