Home
Class 12
MATHS
The number of different seven-digit numb...

The number of different seven-digit numbers that can be written using only the three digits 1, 2, and 3 with the condition that the digit 2 occurs twice in each number is a. `^2P_5 2^5` b. `^7C_2 2^5` c. `^7C_2 5^2` d. none of these

A

640

B

672

C

512

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • DEFINITE INTEGRATION & ITS APPLICATION

    RESONANCE ENGLISH|Exercise High Level Problem|26 Videos

  • EQUATIONS

    RESONANCE ENGLISH|Exercise EXERCISE-2 (PART-II: PREVIOUSLY ASKED QUESTION OF RMO) |5 Videos

Similar Questions

Explore conceptually related problems

The number of different seven digit numbers that can be written using only three digits 1, 2 &3 under the condition that the digit 2 occurs exactly twice in each number.

The number of different four - digit numbers that can be formed with the digits 2, 3, 4, 7 and using each digit only once is

The number of 5-digit number that can be made using the digits 1 and 2 and in which at laest one digits is different, is

The number of 4 digit numbers that can be made using exactly two digits out of 1,2,3,4,5,6 and 7

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

The number of six digit numbers that can be formed by using the digits 1,2,1,2,0,2 is

The number of even numbers of four digits that can be formed using the digits 0, 1, 2, 3, 4 and 5 is

Write the number of 5 digit numbers that can be formed using digits 0,1 and 2.

A three-digit number is to be formed using the digits 0, 1, 2, 3, 4, and 5, without repetition.

The number of 6 digits numbers that can be formed using the digits 0, 1, 2, 5, 7 and 9 which are divisible by 11 and no digit is repeated is

RESONANCE ENGLISH-DPP-QUESTION
  1. Match the following :

    Text Solution

    |

  2. How many even numbers are there with three digits such that if 5 is...

    Text Solution

    |

  3. The number of different seven-digit numbers that can be written usin...

    Text Solution

    |

  4. Number of natural numbers between 100 & 1000 such that at least one of...

    Text Solution

    |

  5. A class consists of 4 boys and g girls. Every Sunday five students, in...

    Text Solution

    |

  6. Let A,B,C,D be collinear points in that order. Suppose AB: CD = 3:2 an...

    Text Solution

    |

  7. If A & B are the points (-3,4)a n d(2,1) , then the co-ordinates of th...

    Text Solution

    |

  8. If a triangle A B C ,A-=(1,10), circumcenter -=(-1/3,2/3), and orthoce...

    Text Solution

    |

  9. If the 6th term in the expansion of(1/(x^(8/3))+x^2(log)(10)x)^8 is 56...

    Text Solution

    |

  10. If the second term of the expansion [a^(1/(13))+a/(sqrt(a^(-1)))]^n is...

    Text Solution

    |

  11. The co-efficient of x in the expansion of (1-2x^3+3x^5)(1+1/x)^8 is:

    Text Solution

    |

  12. If (1!)^(2) + (2!)^(2) + (3!)^(2) + "…….." + (99!)^(2) is divided by 1...

    Text Solution

    |

  13. The coefficients of three consecutive terms of (1+x)^(n+5) are in the ...

    Text Solution

    |

  14. STATEMENT - 1 : The term independent of x in the expansion of (x+1/x+2...

    Text Solution

    |

  15. If the roots of the equation x^2-2a x+a^2-a-3=0 are real and less than...

    Text Solution

    |

  16. A dictionary is made of the words that can be the position of the word...

    Text Solution

    |

  17. In how many ways can 8 different books be distributed among 3 students...

    Text Solution

    |

  18. Let N be the number of quadratic equations with coefficients from {0, ...

    Text Solution

    |

  19. If the line y = x cuts the curve x^(3) + 3y^(3) - 30xy + 72x - 55 = 0 ...

    Text Solution

    |

  20. The interior angle bisector of angle P for the trangle P Q R whose coo...

    Text Solution

    |