Home
Class 14
MATHS
Let a,x,y,z,b be in AP, where x+y+z=15. ...

Let a,x,y,z,b be in AP, where x+y+z=15. let a,p,q,r,b be in HP, where `p^(-1)+q^(-1)+r^(-1) =(5)/(3)`
Q. What is the value of pqr ?

A

120

B

105

C

90

D

Cannot be determined

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SEQUENCE AND SERIES

    PUNEET DOGRA|Exercise PREVIOUS YEAR QUESTIONS|88 Videos
  • QUADRATIC EQUATIONS

    PUNEET DOGRA|Exercise PREV YEAR QUESTIONS|103 Videos
  • SET & RELATION

    PUNEET DOGRA|Exercise PREV YEAR QUESTIONS|65 Videos

Similar Questions

Explore conceptually related problems

Let a ,x, y ,z b be in AP where x+y+z=15 Let a ,p,q ,r ,b be in HP where p^(-1) +q^(-1)+r^(-1)=5/3 What is the value of ab What is the value of xyz What is the value of pqr

If a,x,y,z,b are in AP then x+y+z=15 and if a,x,y,z,b are in HP.then (1)/(x)+(1)/(y)+(1)/(z)=(5)/(3). Numbers a,b are

If x^(1/p)=y^(1/q)=z^(1/r) and xyz=1, then the value of p+q+r=

If p,q,r are in A.P. while x,y,z are in G.P., prove that x^(q-r)y^(r-p)z^(p-q)=1

Suppose a, x, y, z and b are in A.P. where x + y + z = 15, and a, alpha , beta, gamma, b are in H.P, where 1//alpha + 1//beta + 1//gamma = 5/3. Find a and b

Let a,x,b be in A.P , a,y,b be in G.P and a,z,b be in H.P . If x=y+2 and a=5z , then

If x^(1//p)=y^(1//q)=z^(1//r) and xyz =1, " then the value of " p+q+r would be

PUNEET DOGRA-SEQUENCE AND SERIES-PREVIOUS YEAR QUESTIONS
  1. How many geometric progressios is/are possible containing 27.8 and 12 ...

    Text Solution

    |

  2. Let a,x,y,z,b be in AP, where x+y+z=15. let a,p,q,r,b be in HP, where ...

    Text Solution

    |

  3. Let a,x,y,z,b be in AP, where x+y+z=15. let a,p,q,r,b be in HP, where ...

    Text Solution

    |

  4. Let a,x,y,z,b be in AP, where x+y+z=15. let a,p,q,r,b be in HP, where ...

    Text Solution

    |

  5. The sixth terms of an AP is 2 and its common difference is greater tha...

    Text Solution

    |

  6. The sixth terms of an AP is 2 and its common difference is greater tha...

    Text Solution

    |

  7. The interior angles of a polygon are in A.P. If the smallest angle is ...

    Text Solution

    |

  8. The interior angles of a polygon are in A.P. If the smallest angle is ...

    Text Solution

    |

  9. What is the greatest value of the positive integer n satisfying the co...

    Text Solution

    |

  10. Given that a(n)=int(0)^(pi)(sin^(2){(n+1)x})/(sin2x)dx Q. What is a(...

    Text Solution

    |

  11. Given that a(n)=int(0)^(pi)(sin^(2){(n+1)x})/(sin2x)dx Q. What is a(...

    Text Solution

    |

  12. If m is the geometric mean of ((y)/(z))^(log(yz)),((z)/(x))^(log(zx)) ...

    Text Solution

    |

  13. Given that log(x)y,log(z)x,log(y)z are in GP, xyz=64 and x^(3),y^(3),z...

    Text Solution

    |

  14. Given that log(x)y,log(z)x,log(y)z are in GP, xyz=64 and x^(3),y^(3),z...

    Text Solution

    |

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

    Text Solution

    |

  16. What is the sum of the series 0.5+0.55+0.555+. . .+n terms ?

    Text Solution

    |

  17. The value of the infinite product 6^((1)/(2))xx6^((1)/(4))xx6^(1/8)xx6...

    Text Solution

    |

  18. If the nth term of an AP is (3+n)/(4), then the sum of first 105 terms...

    Text Solution

    |

  19. What is the sum of n terms of the series sqrt(2)+sqrt(8)+sqrt(18)+sqrt...

    Text Solution

    |

  20. If p,q,r are in one geometric progression and a,b,c are in another geo...

    Text Solution

    |