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If  x% of four-digit numbers have a repeated digit of 0 (the digits of 0 do not need to be adjacent), then what is x? Express your answer as a decimal to the nearest tenth.

 Nov 19, 2020
 #1
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I can help you, but only ifthe question is If  x% of four-digit numbers have a repeated digit (the repeated digits do not need to be adjacent), then what is x ? Express your answer as a decimal to the nearest tenth.. Did you have a typo? If so, tell me and I can help you with it

 Nov 19, 2020
 #2
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There are: 9999 - 1000 + 1=9000 numbers 4-digit numbers between 1000 and 9999

 

There are 28 numbers per 1000 numbers that have at least 2 zeros in them.

 

28  x  9 =252 numbers with at least 2 zeros between 1000 and 9999.

 

x = 252 / 9000 =7 / 250 =2.8%

 Nov 19, 2020

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