On selling 17 balls for Tk 720 , there iss a loss equal to the cost price of 5 balls. The cost price of a ball is --

On selling 17 balls for Tk 720 , there iss a loss equal to the cost price of 5 balls. The cost price of a ball is -- Correct Answer Tk 60

(Cost price of 17 balls) - ( selling price of 17 balls) = ( cost price of 5 balls) Cost price of 12 balls = selling price of 17 balls = Tk.720 Cost price of 1 ball = Tk 720/12 = Tk.60
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