Home
Class 12
MATHS
a Letter lock contains 5 rings each ...

a Letter lock contains 5 rings each marked with four different letters . The number of all possible iunsuccesful attempts to open the lock is

A

625

B

1024

C

624

D

1023

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS & COMBINATIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 1B (COMBINATIONS )|222 Videos

  • PERMUTATIONS & COMBINATIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 ( SPECIAL TYPE QUESTIONS ) SET -1|9 Videos

  • PERMUTATIONS & COMBINATIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 ( SPECIAL TYPE QUESTIONS ) SET -4|10 Videos

  • PARTIAL FRACTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 SET - 4|2 Videos

  • PROBABILITY

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) SET-4|5 Videos

Similar Questions

Explore conceptually related problems

A letter lock consists of 4 rings each marked with 10 different letters, the number of ways in which it is possible to make an unsuccessful attempts to open the lock is

A letter lock consists of three rings each marked with 10 different letters. No. of ways to make an unsuccessful attempts to open the lock is

A letter lock consists of three rings each marked with 5 different letters. Number of maximum attempts to open the lock is

A letter lock contains 4 rings, each ring containing 5 letters. All possible trails are made to open the lock and the lock opens in only one way. The probability for the lock to open is

A number lock has 3 rings and each ring has 9 digits 1, 2, 3,……, 9. Find the maximum number of unsuccessful attempts that can be made by a thief who tries to open the lock without knowing the key code.

A number lock contains 4 rings each ring containing 6 numbers . All the possible attempts of opening the lock are made but the lock opens in only one way. The probability for the lock to open is

Suppose that 'n' letters are written to 'n' different persons and their addresses are written on 'n' different envelops. Find the number of ways in which these letters can be put in the envelopes (one in each) such that atleast one letter does not go into the corresponding envelope.

The number of ways in which five different letters can be put in their five addressed envelopes so that all the letters are in the wrong envelopes is

Each of the four questions in a multiple choice test has 4 possible answers . The number of different sets of possible answers is

ten different letters of alphabet are given . Words with 5 letters are formed from these given letters than the number of words which have at least one letter repreated is