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Pretty simple question.

How many 4-digit numbers higher than 4000 can be formed by using the digits 2, 3, 4, 5 and 6 without repetition?

 Nov 21, 2018
 #1
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If it is so simple, why are you asking it??

 

How many 4-digit numbers higher than 4000 can be formed by using the digits 2, 3, 4, 5 and 6 without repetition?

Any that start with 4, 5 or 6 will do.

 

So that is 3* 4*3*2 = 72 numbers

 Nov 21, 2018

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