Home
Class 10
MATHS
The HCF of two numbers is 23 and their L...

The `HCF` of two numbers is `23` and their `LCM` is `1449.` If one of the number is `161`, find the other .

A

`205`

B

`208`

C

`207`

D

`209`

Text Solution

Verified by Experts

The correct Answer is:
C

For two numbers `a` and `b,` we know that
` ( axx b)` = ( HCF (a ,b) ` xx ` ( LCM (a,b)) .
Here a '= 161 , HCF = w23 and LCM = 1449.
And we have to find b.
` ( 161 xxb) = ( 23xx 1449) Rightarrow b = ((23 xx 1449))/161 = 207`
Hence , the other number is `207. `
Promotional Banner

Topper's Solved these Questions

  • REAL NUMBERS

    RS AGGARWAL|Exercise Exercise 1A|10 Videos
  • REAL NUMBERS

    RS AGGARWAL|Exercise Exercise 1B|27 Videos
  • QUADRATIC EQUATIONS

    RS AGGARWAL|Exercise Test Yourself|55 Videos
  • SAMPLE PAPER I

    RS AGGARWAL|Exercise SECTION D|16 Videos

Similar Questions

Explore conceptually related problems

The HCF of two numbers is 23 and their LCM is 1449 . If one of the numbers is 161 find the other .

The LCM of two numbers is 182 and their HCF is 13. If one of the numbers is 26, find the other.

The LCM of two numbers is 1920 and their HCF is 16. If one of the number is 128, find the other number.

The HCF of two numbers is 145 and their LCM is 2175. if one of the numbers is 725, find the other.

The HCF of two numbers is 23 and their LCM is 1449. If one number is 207, find the other number.

The HCF of two numbers is 96 and their LCM is 1296. If one of the number is 864, the other is:

LCM of two number is 378 and their HCF is 9 . If one of the number is 63 , then find the other number.

The HCF of two numbers is 145 and their LCM is 2175 . If one of the numbers is 725 . Find the other.

The LCM of two numbers is 108 and their HCF is 4. If one of the number is 12, then find the other number.

RS AGGARWAL-REAL NUMBERS-Test Youself
  1. The HCF of two numbers is 23 and their LCM is 1449. If one of the numb...

    Text Solution

    |

  2. The decimal representation of 71/150 is

    Text Solution

    |

  3. which of the following has a terminating decimal expansion ?

    Text Solution

    |

  4. On dividing a positive integers n by 9, we get 7 as remainder. What w...

    Text Solution

    |

  5. 0.overline(68) + 0. overline(73) = ?

    Text Solution

    |

  6. Show that any number of the form 4^(n),n ne N can never end with the...

    Text Solution

    |

  7. The HCF of two numbers is 27 and their LCM is 162. if one of numbers i...

    Text Solution

    |

  8. Examine whether 17/30 is a terminating decimal

    Text Solution

    |

  9. Find the simplest form of 148/185

    Text Solution

    |

  10. Which of the following numbers are irrational ? (a) sqrt2 (b) root3...

    Text Solution

    |

  11. prove that (2 +sqrt3) is irrational.

    Text Solution

    |

  12. Find the HCF and LCM of 12, 15, 18, 27

    Text Solution

    |

  13. Give an example of two irrational numbers whose sum is rational

    Text Solution

    |

  14. Give prime factrisation of 4620.

    Text Solution

    |

  15. Find the HCF of 1008 and 1080 by prime factorisation method.

    Text Solution

    |

  16. Find the HCF and LCM of 8/9 , 10/29 and 16/81

    Text Solution

    |

  17. Find the largest number which divides 546 and 764 leaving remainders 6...

    Text Solution

    |

  18. Prove that sqrt(3) is an irrational number.

    Text Solution

    |

  19. Show that every positivee odd integer is the form ( 4q +1) , or ( 4q +...

    Text Solution

    |

  20. Show that one and only one out of n,( n+2) and ( n +4) is divisble by ...

    Text Solution

    |

  21. Show that (4 +3sqrt2) is irrational.

    Text Solution

    |