We have two dice of different colours, are thrown simultaneous. ∴ Total number of sample space =36 A be the event that sum of the faces appears is 7 i.e. A={(1,6)(2,5)(3,4)(4,3)(5,2)(6,1) ∴P(A)=
6
36
and B be the event that sum of the faces appears is 11 i.e. B={(5,6)(6,5)} P(B)=