Latest Wipro Aptitude Question SOLUTION: wo dice are tossed once.what is the probability of getting an even no. on first die or sum is 8,,

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(#M40153786) WIPRO Numerical Ability question Keep an EYE

wo dice are tossed once.what is the probability of getting an even no. on first die or sum is 8,,

Asked In Wipro shaik mohammed arif (8 years ago)

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Devendra Marghade  (8 years ago)

5/9

Total outcomes=6*6=36
Number of combinations with even number on first die are (2,1)(2,2),.....(2,6) and (4,1)(4,2).....(4,6) and (6,1)(6,2)......(6,6), Total 6*3=18
Number of combinations with sum 8 are (2,6) (3,5) (4,4) (5,3) (6,2),Total=5 and among these (2,6) (4,4) (6,2) are already included in the earlier combinations of even number on first die, so remaining 2 i.e (3,5) (5,3)
So probability of getting an even number on first die or sum 8=(18+2)/36=20/36=5/9

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SANDIP KUMAR  (6 years ago)

(18/36)+(5/36)-(3/36)=5/9

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