Home
Class 11
MATHS
How many four-digit numbers can be forme...

How many four-digit numbers can be formed by using the digits 1, 2, 3, 4, 5, 6, 7 if at least one digit is repeated.

Promotional Banner

Topper's Solved these Questions

  • LOGARITHM

    CENGAGE ENGLISH|Exercise All Questions|173 Videos

  • PROBABILITY

    CENGAGE ENGLISH|Exercise All Questions|1 Videos

Similar Questions

Explore conceptually related problems

How many four -digits even integers can be formed using the digits 0,1,2,3,4,5?

How many 7-digit number can be formed using the digits 1,2,0,2,4,2 and 4?

How many four digit numbers can be formed using digits 1, 2, 3, 4, 5 such that at least one of the number is respeated?

How many three digit numbers can be formed without using the digits 0,2,3,4,5 and 6?

How many three-digit numbers more than 600 can be formed by using the digits 2, 3, 4, 6, 7.

How many 6 digit numbers can be formed with the digits 1,3,3,0,1,2?

How many 3-digit numbers can be formed by using the digits 1 to 9 if no digit is repeated?

How many 3-digit numbers can be formed by using the digits 1 to 9 if no digit is repeated?

How many 7 digit numbers can be formed with the digits 2,3,0,3,4,4,3?

How many 3 digit odd numbers can be formed with the digits 1,3,5,6,8?

CENGAGE ENGLISH-PERMUTATIONS AND COMBINATIONS-All Questions
  1. Find 5P3

    Text Solution

    |

  2. Find the number of ways in which 5A^(prime)s and 6B ' s can be arrange...

    Text Solution

    |

  3. How many four-digit numbers can be formed by using the digits 1, 2, 3,...

    Text Solution

    |

  4. There are six periods in each working day of the school. In how many ...

    Text Solution

    |

  5. Find the number of permutation of all the letters of the word MATHE...

    Text Solution

    |

  6. Find 5P3

    Text Solution

    |

  7. In how many ways can 30 marks be allotted to 8 question if each que...

    Text Solution

    |

  8. Find the number of arrangements of the letters of the word SALOON, if ...

    Text Solution

    |

  9. If the best and the worst paper never appear together, find in how man...

    Text Solution

    |

  10. Find the number of ways in which the birthday of six different persons...

    Text Solution

    |

  11. A committee of 6 is chosen from 10 men and 7 women so as to contain at...

    Text Solution

    |

  12. If .^(n+2)C8:^(n-2)P4:: 57 : 16 , find n

    Text Solution

    |

  13. Find the number of positive integers, which can be formed by using any...

    Text Solution

    |

  14. Find the number of words that can be made out of the letters of the ...

    Text Solution

    |

  15. In how many ways can 5 girls and 5 boys be arranged in a row if all bo...

    Text Solution

    |

  16. Out of 15 balls, of which some are white and the rest are black, how ...

    Text Solution

    |

  17. इस दीपावली त्यौहार पर, कक्षा में प्रत्येक छात्र दूसरे को ग्रीटिंग का...

    Text Solution

    |

  18. If there are 12 persons in a party, and if each two of them shake hand...

    Text Solution

    |

  19. Find the ratio of .^20Cr and .^(25)Cr when each of them has the greate...

    Text Solution

    |

  20. If a ,b ,c in {1,2,3,4,5,6,} find the number of ways a, b, c can be ...

    Text Solution

    |