Three fair and unbiased dice and rolled at a time. The probability that the numbers shown are totally different is.
A
59
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B
27216
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C
49
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D
23
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Solution
The correct option is A59 Number of elements in sample space =n(s)=63 = 216 ways
n(E) =Available 6 different numbers or 3 places in 6P3 = 120 ways
Hence P(E)=120216=59