NO UR METHOD IS WRONG.................
case 1)select 1 b ball frm 3 nd other 2 from othrs=3c1*6c2=45
case 2)select 2 b balls nd 1 frm othrs=3c2*6c1=18
case 3)select 3 b balls nd 0 frm othrs=3c3*6c0=1
therfore 45+18+1=64
plzz rate if u like nd share wat all u know........
Moderation Team
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