(b) 5*5*5 = 125
(c) 1*4*3 = 12
512, 513, 514, ... get the idea?
1.How many 3 digit numbers can be made from digits 1-5 if:
a) Repetition of digits is not allowed? 5! / (5-3)! =60
b)Repetition of digits is allowed? I got 120 but the answer says its 125.
c) No repetition is allowed and the number must be greater than 500? List all the numbers fitting this description.
Can you help me with this one
1. List all five digit numbers that can be formed by using two 4's and three 6's.
The answer is suppose to be...44666, 46466, 46646, 46664, 66464, 66644, 66446, 64646, 64466.
Can you show me how I am suppose to come to that answer?