Home
Class 8
MATHS
The smallest number with which 120 shoul...

The smallest number with which 120 should be multiplied so that the product is a perfect square is

A

120

B

60

C

30

D

15

Text Solution

Verified by Experts

The correct Answer is:
c
Write the prime factors from the number 120
Promotional Banner

Topper's Solved these Questions

  • SQUARES AND SQUARE ROOTS AND CUBES AND CUBE ROOTS

    PEARSON IIT JEE FOUNDATION|Exercise Level2|18 Videos

  • SQUARES AND SQUARE ROOTS AND CUBES AND CUBE ROOTS

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|7 Videos

  • SQUARES AND SQUARE ROOTS AND CUBES AND CUBE ROOTS

    PEARSON IIT JEE FOUNDATION|Exercise Easy Type Question|5 Videos

  • SIMPLE INTEREST AND COMPOUND INTEREST

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION Level 3|9 Videos

  • STATISTICS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL II) |29 Videos

Similar Questions

Explore conceptually related problems

Find the smallest number by which 5808 should be multiplied so that the product becomes a perfect square. (a) 2 (b) 3 (c) 7 (d) 11

Find the smallest number by which 180 must be multiplied so that the product is a perfect square.

Find the smallest number by 180 which 180 must be multiplied so that the product is a perfect square.

Find the smallest number by which 1100 must be multiplied so that the product becomes a perfect square.Also in each find the square root of the perfect square so obtained.

Find the smallest number by which 4851 must be multiplied so that the product becomes a perfect square.

Find the smallest number by which 392 must be multiplied so that the product is a perfect cube.

Find the smallest number by which 96 must be multiplied so that the product is a perfect cube.

Find the smallest number by which 1323 must be multiplied so that the product is a perfect cube.

Find the smallest number by which 2560 must be multiplied so that the product is a perfect cube.

PEARSON IIT JEE FOUNDATION-SQUARES AND SQUARE ROOTS AND CUBES AND CUBE ROOTS -Level1
  1. What will be the units digit of the squares of the following numbers?

    Text Solution

    |

  2. Which of the following is not a perfect square ?

    Text Solution

    |

  3. The smallest number with which 120 should be multiplied so that the pr...

    Text Solution

    |

  4. The greatest 3 digit number which is a perfect square is

    Text Solution

    |

  5. If p and q are perfect squares then sqrt(p)/(q) is always a rational n...

    Text Solution

    |

  6. root3((-a^6 xx b^3 xx c^(21))/(c^9 xx a^(12)))=………

    Text Solution

    |

  7. If 3(x-2)^(2)=507 then x can be

    Text Solution

    |

  8. The value of sqrt(117^(2)-108^(2))

    Text Solution

    |

  9. The square root of 36/5 when corrected to two decimal places is

    Text Solution

    |

  10. If the product of two equal numbrers is 1444 then the number are

    Text Solution

    |

  11. The cube of the number p is 16 times the number Then find p where p ne

    Text Solution

    |

  12. The cube of a number x is nine times of x then find x x ne 0 and x ne...

    Text Solution

    |

  13. The digit in the units place for the cube of a four digit number of th...

    Text Solution

    |

  14. The digit in the units place for the cube of the number 12345678 is

    Text Solution

    |

  15. Which of the following number becomes a perfect cube when we divide th...

    Text Solution

    |

  16. The least number to be substracted from 220 so that it become a perfec...

    Text Solution

    |

  17. If (x^(y))^z =2^(8)then find the maximum possible value of (x)(y)(z) w...

    Text Solution

    |

  18. The smallest number which must be subtracted from 3400 to make it a pe...

    Text Solution

    |

  19. If a =2b and b=4c then ((a^(1/4))/(16bc))^(1/2)=

    Text Solution

    |

  20. निम्न में से कौन सा पूर्ण वर्ग है?

    Text Solution

    |