Fun and accessible problems for younger students or beginners. Posted every Monday, these weekly brain teasers kickstart your week with a mental warm-up.
A number from 1 to 100 (inclusive) is selected at random. What is the probability that the number selected is a prime number that contains the digit 1? Probability is a number between 0 and 1. Round your answer to the nearest hundredth.
The first 5 to correctly answer this question are shown below.
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