Answer :
Divide 72 by the number of cigarette butts it takes to make one whole cigarette.
72 / 6 = 12
Now we have 12 whole cigarettes, which gives us 12 more cigarette butts, which gives us 12 / 6 = 2 more whole cigarettes.
So he can make 14 cigarettes.
72 / 6 = 12
Now we have 12 whole cigarettes, which gives us 12 more cigarette butts, which gives us 12 / 6 = 2 more whole cigarettes.
So he can make 14 cigarettes.