Q. 163.5( 26 Votes )

The faces of a die bear numbers 0, 1, 2, 3, 4, 5. If the die is rolled twice, then find the probability that the product of digits on the upper face is zero.

Answer :

Case 1: The face of die have number 0 when rolled twice.


Probability that the product of digits on the upper face is zero=



Case 2: One face of die has 0 and the other has any number from 1 to 5


Probability that the product of digits on the upper face is zero=



Total probability that the product of digits on the upper face is zero=




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