SOLUTION: Locks combinations are made by using 4 digits. How many different lock combinations can be made if repetition of digits is allowed
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Question 302149: Locks combinations are made by using 4 digits. How many different lock combinations can be made if repetition of digits is allowed Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Locks combinations are made by using 4 digits. How many different lock combinations can be made if repetition of digits is allowed
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1st digit: 10 ways
2nd digit: 10ways
3rd digit: 10 ways
4th digit: 10 ways
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Total way = 10^4 = 10,000
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Cheers,
Stan H.
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