Home
Class 12
MATHS
If a, b, and c are in A.P., then which o...

If `a, b, and `c` are in A.P., then which one of thew following is not true?

A

`k/a, k/b` nad `k/c` are in H.P.

B

`a + k, b + k` and `c + k` are in A.P.

C

`ka, kb,` and `kc` are in A.P.

D

`a^(2), b^(2)` and `c^(2)` are in A.P.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • SEQUENCES AND SERIES

    NEW JOYTHI PUBLICATION|Exercise EXERCISE|49 Videos

  • RELATIONS AND FUNCTIONS

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|33 Videos

  • SETS

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|21 Videos

Similar Questions

Explore conceptually related problems

If positive quantities a,b,c are in H.P. , then which of the following is not true ?

The numbers a,b,c are in A.P. and a+b+c=60 . The numbers (a-2) , b , (c+3) are in G.P. Then which of the following is not the possible value of a^(2)+b^(2)+c^(2) ?

If p is true and q is false, then which of the following is not true?

If A, B and C are invertible matrices of some order, then which one of the following is not true?

If A=[(a,b,c),(x,y,x),(p,q,r)], B=[(q,-b,y),(-p,a,-x),(r,-c,z)] and If A is invertible, then which of the following is not true ?

Which of the following sequenece is not an A.P.?

For two events A and B , if P(A)P((A)/(B))=(1)/(4) and P((B)/(A))=(1)/(2) , then which of the following is not true ?

If a ,b ,c are in A.P., then prove that the following are also in A.P. a^2(b+c),b^2(c+a),c^2(a+b)

If a ,b ,c are in A.P., then prove that the following are also in A.P. a(1/b+1/c),b(1/c+1/a),c(1/a+1/b)

If a ,b ,c are in A.P., then prove that the following are also in A.P. 1/(sqrt(b)+sqrt(c)),1/(sqrt(c)+sqrt(a)),1/(sqrt(a)+sqrt(b))

NEW JOYTHI PUBLICATION-SEQUENCES AND SERIES -QUESTIONS FROM COMPETITIVE EXAMS
  1. The two geometric means between the numbers 1 and 64 are

    Text Solution

    |

  2. If 1 + (1 + 2)/2 + (1 + 2 + 3)/3 + ...... to n terms is s, then s is e...

    Text Solution

    |

  3. If a, b, and c are in A.P., then which one of thew following is not tr...

    Text Solution

    |

  4. If are the n Arithmetic means between a and b, then 2sum(I - 1)^(n)a(...

    Text Solution

    |

  5. If the third term of a G.P is P. Then the Product of the first 5 terms...

    Text Solution

    |

  6. The sum to n terms of the series 4/3 + 10/9 + 28/27 + ……. is

    Text Solution

    |

  7. A long a road lie an odd number of stones placed at intervals of 10 me...

    Text Solution

    |

  8. Suppose you are appointed to a post carrying a scale of pay of Rs. 800...

    Text Solution

    |

  9. The quardritic equation in x such that the arithmetic mean of its roo...

    Text Solution

    |

  10. If the sum of n terms of the series 2^(3) + 4^(3) + 6^(3) + ......... ...

    Text Solution

    |

  11. ………… term of the G.P. 3, 3sqrt(3),9 ...... is 2187

    Text Solution

    |

  12. A ball is dropped from a height of 48 meters and rebounds 2/3 of the d...

    Text Solution

    |

  13. The sum of 15^(2) + 16^(2) + 17^(2) + ....... + 30^(2) =

    Text Solution

    |

  14. If a(1), a(2), a(3), a(4), a(5) and a(6) are six arithmetic means betw...

    Text Solution

    |

  15. The sum to n terms of the series 1 + (1 + 3) + (1 + 3 + 9) + (1 + 3 + ...

    Text Solution

    |

  16. If x, y, z are in A.P then 1/(sqrt(x) + sqrt(y)) , 1/(sqrt(z) + sqrt(x...

    Text Solution

    |

  17. The product of (32)(32)^(1//6)(32)^(1//36) …….. To infty is

    Text Solution

    |

  18. If A.M and G.M of x and y are in the ratio p:q, then x:y is

    Text Solution

    |

  19. The difference between any two consecutive interior angles of a polygo...

    Text Solution

    |

  20. In an arithmetic progression, the 24^(th) term is 100. Then the sum of...

    Text Solution

    |