Home
Class 14
MATHS
If x : y=7:3, then the value of (x y+y^2...

If `x : y=7:3,` then the value of `(x y+y^2)/(x^2-y^2)` is `3/4` b. `4/3` c. `3/7` d. `7/3`

Promotional Banner

Topper's Solved these Questions

  • RACES AND GAMES OF SKILL

    RS AGGARWAL|Exercise All Questions|33 Videos
  • SIMPLE INTEREST

    RS AGGARWAL|Exercise All Questions|124 Videos

Similar Questions

Explore conceptually related problems

If x:y= 3: 4, then the value of (5x - 2y)/(7x + 2y) =

If x=2,y=-4 and z=1. FInd the value of 3x-7y^(2)+3xyz

If x : y = 3 :4 then (7x + 3y) : (7x - 3y) = ?

If (x : y) = (3 : 4) then (7x + 3y) : (7x - 3y) = ?

If (x ^(2))/( y ^(2)) + (y ^(2))/( x ^(2)) = 7, then the vlaue of (x ^(3))/( y ^(3)) + (y ^(3))/(x ^(3)) is

RS AGGARWAL-RATIO AND PROPORTION-All Questions
  1. If x : y=3:1,\ t h e n\ x^3-y^3: x^3+y^3=? 10 : 11 b. 11 : 10 c. 13 :...

    Text Solution

    |

  2. If 5a+3b :2a-3b=23 :5, then the value of a : b is a.\ 1:2\ b. 2:1 c. ...

    Text Solution

    |

  3. If x : y=7:3, then the value of (x y+y^2)/(x^2-y^2) is 3/4 b. 4/3 c. 3...

    Text Solution

    |

  4. If a/b=4/5a n d b/c=(15)/(16)t h e n(c^2-a^2)/(c^2+a^2) would be 1/7 b...

    Text Solution

    |

  5. If a : b=b : c ,\ t h e n\ a^4: b^4 would be equal to a c : b^2 ...

    Text Solution

    |

  6. If x : y=3:4\ a n d\ a : b=1:2, then the value of (2x a+y b)/(3y b-...

    Text Solution

    |

  7. If a : b : c=2:3:4,\ t h e n1/a :1/b :1/c is equal to 1/4:1/3:1/2 b. 4...

    Text Solution

    |

  8. If 1/x :1/y :1/z=2:3:5\ t h e n\ x : y : z is equal to 2:3:5 b. 15 : 1...

    Text Solution

    |

  9. If (x+y):(x-y)=4:1,\ t h e n\ (x^2+y^2):(x^2-y^2)=? 8: 17 b. 17 :8 c....

    Text Solution

    |

  10. If a :(b+c)=1:3\ a n d\ c :(a+b)=5:7,\ t h e\ b :(a+c) is equal to 1:2...

    Text Solution

    |

  11. If a : b=3:4,\ b : c4:7,\ t h e n(a+b+c)/c is equal to 1 b. 2 c....

    Text Solution

    |

  12. If A : B : C=2:3:5 and A=x %\ of\ (B+C), then x is equal t...

    Text Solution

    |

  13. x , y , z ,\ u are real nubs such that x : y=y : z=z : u\ a n d\ x ...

    Text Solution

    |

  14. If a : b : c=2:3:4\ a n d\ 2a-3b+4c=33 , then the value of c is ...

    Text Solution

    |

  15. If p : q : r=1:2:4,\ t h e n\ sqrt(5p^2+q^2+r^2) is equal to 5 b...

    Text Solution

    |

  16. If A : B : C=2:3:4, then the ratio A/B : B/C : C/A is equal t...

    Text Solution

    |

  17. If a : b=5:7\ a n d\ c : d=2a :3b ,\ t h e n\ a c : b d is 10 : 21 b...

    Text Solution

    |

  18. If a/b=b/c=c/d ,\ t h e n(b^3+c^3+d^3)/(a^3+b^3+c^3) will be equ...

    Text Solution

    |

  19. If p: q=3:4,\ r : s=8:5\ a n d\ x : y=10 :6, then p s x : q r y is...

    Text Solution

    |

  20. If a : b=c : d then (m a+n c)/(m b+n d) is equal to m : n b. ...

    Text Solution

    |