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Sam writes down the numbers 1, 2, 3, ..., 99

 

(a) How many digits did Sam write, in total?

(b) Sam chooses one of the digits written down, at random.  What is the probability that Sam chooses a 0?

(c) What is the sum of all the digits that Sam wrote down?

 Feb 10, 2023
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https://web2.0calc.com/questions/counting_95164

 

This has already been asked and answered

 Feb 10, 2023

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