Question

How many 3 digit numbers can you make using the digits 1, 4, 5 and 8 without repeating the digits??

Answer 1

Answer:24

Step-by-step explanation: According to FPC*fundamental principle of counting.

Not repeated so there are 4 digits

4×3×2ways

We used 1 digit among the 4 so the next is 3 digits.And then we used 2 digits among the 4 so it became 2

Answer 2

S={145,451,581,154,158,185,841,851,541,} mostly this making 3 digits