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How many different four digit alarm codes can be form for a house alarm be 2,4 or 9 and all the other digits can be any number and numbers can be repeated
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5 votes
How many different four digit alarm codes can be form for a house alarm be 2,4 or 9 and all the other digits can be any number and numbers can be repeated

User JasonK
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1 Answer

3 votes

Answer:

Bro, are you trying to break into someone's house of somethin?

Explanation:

User Simon Ndunda
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