Correct option is A
Given:
The digits available are 0, 1, 4, 5, 7.
The task is to form a 3-digit number such that repetition of digits is not allowed.
The digits available are 0, 1, 4, 5, 7.
The task is to form a 3-digit number such that repetition of digits is not allowed.
Concept Used:
A 3-digit number cannot start with 0.
A 3-digit number cannot start with 0.
Solution:
For the first digit, since it cannot be 0, we have the following choices: 1, 4, 5, 7 (4 choices).
For the second digit, we can choose any digit from the available set except the first digit (since repetition is not allowed), so we have 4 remaining choices.
For the third digit, we can choose any of the remaining digits except the first and second digits, so we have 3 choices.
4 | 4 | 3 |
Total number of 3-digit numbers = 4 × 4 × 3 = 48
So, the total number of 3-digit numbers that can be formed is 48.
Thus, the correct answer is (a).
English
25 Questions
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