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Grade 12th passAlgebra

Three identical dice are rolled. The probability that distinct number appears on them is

Profile image of Kshitiz Gautam
8 Years agoGrade 12th pass
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1 Answer

Profile image of Arun
ApprovedApproved Tutor Answer8 Years ago
Dear Kshitiz
 
Distinct number should be on each one of them,
Then total number of ways = 6*5*4 = 120
Total possible outcomes = 6*6*6 = 216
 
Hence probability = 120/216 = 20/36 = 5/9
 
Regards
Arun (askIITians forum expert)