Question
What is the minimum number of numbers needed to form every number from 1 to 7,000?


Example: To form 4884, you would need 2 4s & 2 8s. 4822 requires a 4, a 8, & 2 2s, but you would not count the numbers again that you had already counted from making 4884.
Answers
Answer

36

You will need 3 of numbers 0, 7, 8 & 9, & 4 of numbers 1-6.   Your Comment




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