Home
Class 9
MATHS
P varies inversely with sqrty. If y = ...

P varies inversely with ` sqrty`. If y = 2, then P=40. If p=20 then find y.

A

`sqrt()8`

B

8

C

4

D

`sqrt2`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • RATIO, PROPORTION AND VARIATION

    PEARSON IIT JEE FOUNDATION|Exercise Leval 3|10 Videos

  • RATIO, PROPORTION AND VARIATION

    PEARSON IIT JEE FOUNDATION|Exercise Leval 1|30 Videos

  • QUADRATIC EXPRESSIONS AND EQUATIONS

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|23 Videos

  • SALES TAX AND COST OF LIVING INDEX

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|14 Videos

Similar Questions

Explore conceptually related problems

If x varies inversely as y, then

If x varies inversely as y and x = 20 when y = 600, find y when x = 400

If x varies inversely as y and y = 60 when x = 1.5. Find x. when y = 4.5.

If P(n,4)=20P(n,2), find n

If z varies as px + y, and if z = 3 when x = 1 and y = 2. Also if z = 5 then x =2 and y = 3, find the value of p.

If x and y vary inversely and x=15 when y=6, find y when x=9.

If two quantities p and q vary inversely with each other, then

If P(n,4)=20xx P(n,2), find n

If a and b vary inversely to each other, then find the values of x, y, z.

PEARSON IIT JEE FOUNDATION-RATIO, PROPORTION AND VARIATION-Leval 2
  1. Seven years ago the ratio of the ages of P and Q (in years) was 7 : ...

    Text Solution

    |

  2. The ratio of the monthly incomes of Ram and Shyam is 3 : 4 and the r...

    Text Solution

    |

  3. The ratio of the present ages of Anand and Bals is 8 : 3. When Anand...

    Text Solution

    |

  4. There are three sections A, B and C in class VIII of a school. The rat...

    Text Solution

    |

  5. In a solution of 45 litres of milk and water, 40% is water. How man...

    Text Solution

    |

  6. Find the triplicate ratio of (2y-x) : (2x-y), if x : y = 4 : 3.

    Text Solution

    |

  7. Nine years ago A's age and B's age were in the ratio 5 : 7 . Which ...

    Text Solution

    |

  8. A vacies directly with x ^(2). If x = 2 or then A=20. Than A if x = ...

    Text Solution

    |

  9. The force applied on a stationary body varies directly with the accel...

    Text Solution

    |

  10. The ratio of the present ages of Ram and Shyam is 3 : 2. Which of the...

    Text Solution

    |

  11. Ninety coins are to be distributed among P,Q and R such that P gets tw...

    Text Solution

    |

  12. P varies inversely with sqrty. If y = 2, then P=40. If p=20 then fin...

    Text Solution

    |

  13. The monthly electricity bill raised by the municipal corporation cons...

    Text Solution

    |

  14. A solution of 30 litres of milk and water, has 70% milk. How many l...

    Text Solution

    |

  15. If (a+b)/(xa+yb) = (b+c)/(xy+yc) = (c+a)/(xc+ya)" where " x + y ne 0 ...

    Text Solution

    |

  16. The ratio of sugar and other ingredients in the biscuits of three ba...

    Text Solution

    |

  17. Rs.x is divided among three persons Mr Vaayu, Mr Jala and Mr Agni in t...

    Text Solution

    |

  18. The ratio of the monthly incomes of Mr Anand and Mr Milind is 9 : 10 ...

    Text Solution

    |

  19. The ratio of the present ages of Mr Dhuryodhana and Mr Dhushyasna is ...

    Text Solution

    |

  20. What must be added to both the terms of x : y so that the resultant ...

    Text Solution

    |