Question 1207390: Mr A is cracking a secret three digit code. He knows that first digit is a even number and the last digit must be an odd number. how many different combinations of the three digit code exist? (note: 0 is an even number).
Answer by Theo(13342) (Show Source):
You can put this solution on YOUR website! first digit must be even = 0,2,4,6,8 = 5 possible.
second digit can be anything from 0 to 9 = 0,1,2,3,4,5,6,7,8,9 = 10 possible.
third digit must be odd = 1,3,5,7,9 = 5 possible.
possible number of combinations are 5 * 10 * 5 = 250.
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