UGC NET Paper 1 GA 2012 Dec Solved Paper

The group must formed by 4, 5 or 6 boys and 3, 2 or 1 girls
the required number of ways when group formed by 4 boys and 3 girls
Number of ways for this selection 6C4×4C3
when group formed by 5 boys and 2 girls Number of ways for this selection
6C5×4C2
when group formed by 6 boys and 1 girl the number of ways for this selection
6C6×4C1
total number of ways =15×4+6×6+1×4
=60+36+4=100.