Hemant Parihar please explain - ( 3C1 * 26 - 3C2 * 16 )
Yes exactly I am unable to understand this part
(3C1 * 26 - 3C2 * 16 )
Read this it is from Rosen.
36 -(3C2 * 26 - 3C1 * 16 ) :-
(3C2 * 26 - 3C1 * 16 ):- here we are removing the case when balls are distributed only between two persone(3C2 * 26 ) ...means balls are distributed either AB,BC or CA now for all these cases ...there is a chance that balls are given two only one (for AB only A or ONLY B) ...for all A,B,C this would happen two times there for we would add this one more time.....(3C1 * 16)
The tests are there but it ain't free. Cost is...