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Thirty lockers are numbered 1 to 30, and Dev is given… | StemPy Lab
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Thirty lockers are numbered 1 to 30, and Dev is given one of them by lot. What is the probability that his locker number is prime?
Mathematics
Medium
High School (9–10)
General
Statistics and Probability › Probability
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Thirty lockers are numbered
1
1
1
to
30
30
30
, and Dev is given one of them by lot. What is the probability that his locker number is prime?
11
30
\dfrac{11}{30}
30
11
3
10
\dfrac{3}{10}
10
3
1
3
\dfrac{1}{3}
3
1
2
5
\dfrac{2}{5}
5
2
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