In how many ways can 7 different objects be dived among 3 persons so that either one or two of them do not get any object?  Choose the correct choice.
A) 381
B) 180
C) 36
D) 84
E) 94
case 1: for all obj are given to one person 3   case 2: choose two out of 3 3c2=3   naw no of ways to distribute 7 obj to two person=2^7   sub two way when no obj is given to both   so no of ways=3+3c2(2^7-2)=381   381NSWER:381
<result>A</result>
In how many ways can 7 different objects be dived among 3 persons so that either one or two of them do not get any object?