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Numerical Ability
Probability
3 dice are rolled. what is the probability of getting sum as 13?
Read Solution (Total 3)
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- 6,6,1= 3!/2!=3
6,4,3=3!=6
6,5,2=3!=6
5,5,3=3!/2!=3
5,4,4=3!/2!=3
total cases= 3+6+6+3+3=21
probability= 21/216 - 8 years agoHelpfull: Yes(5) No(0)
- (6,6,1)=3 ways
(6,5,2)=6 ways
(5,5,3)=3 ways
(4,4,5)=3 ways
(6,4,3)=6 ways hence total=21 ways
probability=21/(6*6*6) - 8 years agoHelpfull: Yes(3) No(0)
- getting sum in 21 ways
probability is =21/216
- 8 years agoHelpfull: Yes(2) No(0)
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