KöMaL 2010 C1047
A fair coin is tossed ten times in a row. Every time a head is tossed, a digit of 2 is written down. When a tail is tossed, a digit of 3 is written down. What is the probability that the resulting ten-digit number is divisible by ) 3, ) 4?
Official text KöMaL. Quoted with source.
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