# how much cost of ball mill

here think logically if we sell 17 balls then we get 5 balls loss for 720, that means on selling 12 balls at 720 we get no loss no profit then 720 is nothing but cost price of 12 balls right.. ! then cost price of 12 balls is 720. then 1 ball cost is 720/12=60. 8.1K views.

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