Question

Maximum how many four digit numbers can be formed using nos. 0,1,2,3
if repetition is allowed ?
2) 148
3) 124
4) 192
4420​

Answer 1

1,2,3,4,5,6

No repetition

Four digit number

Starting with 1

Rest leftover numbers =5

Number of blanks =3

Number of digits

5

P

3

=5×4×3

=60

Answer 2

Step-by-step explanation:

nxnxnxnxnnxnxjxjnxnxnxnmxmxjx