Mathematics - Probability Question with Solution | TestHub

MathematicsProbabilityGeneral (Event SS, Definitions, Odd against/Favour)Medium2 minQB

MathematicsMediumnumerical

A die is rolled four times. If the probability that the product of the first three outcomes equals the fourth is $p$ , find $1/ p$ .

Answer:

7.20

Solution:

There are 25 valid ordered quadruples among $6^{4}$ equally likely outcomes, so $p = 25/ 6^{4}$ . Hence $1/ p = 6^{4} /25 = 36/5 = 7.20$ .

Stream:JEESubject:MathematicsTopic:ProbabilitySubtopic:General (Event SS, Definitions, Odd against/Favour)

⏱ 2mℹ️ Source: QB

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