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Question

Four die are rolled. The number of ways in which at least one die shows 2 is

A
546
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B
671
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C
625
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D
1256
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Solution

The correct option is B 671
Number of dice rolled =4
Each dice has outcome =6
Total number of outcome of 4 dice
(6)46×6×6×61296
Atleast one two so
Total outcome - number of two as a outcome
Number of outcome possible if two doesnt occur=5
on and dice
(5)45×5×5×5625
Outcome possible when atleast one 2 is possible
(6)4(5)41296625671

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