A number lock on a suitcase has 3 wheels each labeled with 10 digits from 0 to 9. If the opening of the lock requires a particular sequence of four digits with no repeats, how many such sequences will be possible?Choices:- 4224 720 560 5040

A letter lock consists of 4 rings, each ring contains 9 non-zero digits. This lock can be opened by setting a 4 digit code with the proper combination of each of the 4 rings Maximum how many codes can be formed to open the lock?

Manny needs to create a four-digit password for his cellphone. If no digits can be repeated, in how many ways can this task be done?a.5,040b.10,000c.210d.7,180

How many four-digit odd numbers can be formed with the digits 0-9 if each digit is used only once in each number?

A numerical lock can be opened using any possible combination of these five digits 0, 1, 0, 3 and 2 (example 20031). John used all possible incorrect combinations on the 5-digit lock before finally opening the lock at the next attempt. How many total attempts did he make? The digits available are 0-5 in lock ​

Adam wrote down a 9-digit university roll number on a piece of paper. On his way home from office, it rained heavily and the paper got wet. Later, he saw that the first 4 digits of the roll number had disappeared. In how many ways can Adam complete this university roll number if repetition of digits is allowed?9⁴4!10⁴10³ x 9