Question 1013628: how many three digit numbers can be formed from the digits 0,1,2,3,4 if repetition of digits is allowed. (note : 0 cannot be in the hundreds place)
Found 2 solutions by stanbon, fractalier:
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! how many three digit number can be formed from the digits 0,1,2,3,4 if repetition of digits is allowed. (note : 0 cannot be in the hundreds place)
-------
hundreds:: 4 ways
tens:::::: 5 ways
units::::: 5 ways
---------
Ans: 4*5*5 = 100 ways
-----------------------------
Cheers,
Stan H.
-----------
Answer by fractalier(6550)  (Show Source):
You can put this solution on YOUR website! Ask yourself,
How many ways can the hundreds digit be chosen? Four ways.
How many ways can the tens digit be chosen? Five ways.
How many ways can the ones digit be chosen? Five ways.
Then we multiply ways, and get
4 * 5 * 5 = 100 different ways to do this...
|
|
|
