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22-04-2018
Mathematics

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What is the probability that a month picked at random will have 31 days?
A.5/12
B.4/12
C.7/12
D.8/12

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mayadc821 mayadc821

22-04-2018

There are 12 months. 7 of them have 31 days (Jan, Mar, May, July, Aug, Oct, Dec). 4 of them have 30 days (Apr, June, Sep, Nov). 1 of them has 28 or 29 days (Feb). Based on this knowledge, the probability of picking a month with 31 days at random is C, 7/12.

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