Question

How many three-digit numbers can be
formed using the digits 2,3,4,5,6 if digits
can be repeated?​

Answer 1

Answer:

Step-by-step explanation:

There will be as many ways as there are ways of filling 3 vacant places in succession by the

given five digits. In this case, repetition of digits is allowed.

Therefore, the units place can be filled in by any of the given five digits.

Similarly, tens and hundreds digits can be filled in by any of the given five digits.

Thus, by the multiplication principle, the number of ways in which three-digit numbers can be

formed from the given digits is 5 * 5 * 5 = 125