SOLUTION: A four digit ID card is to be formed from the digits 1, 2, 3, 4 How many different ID cards can we form if it should start with an even digit and the last 2 are identical ?

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Question 1182939: A four digit ID card is to be formed from the digits 1, 2, 3, 4 How many different ID cards can we form if it should start with an even digit and the last 2 are identical ?
Found 2 solutions by Boreal, ikleyn:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
2 ways for the first*4 ways for the second*10 ways for the 3rd and fourth
80 ways

Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.

From the context,  repetition of the digits is allowed.


Then there are 2 ways for the first digit * 4 ways for the second digit * 4 ways for the third and fourth digits = 


    2*4*4 = 32 ways.    ANSWER

Solved.