Answer : Explanation : From given data,(C.P. of 17 balls) - (S.P. of 17 balls) = (C.P. of 5 balls)C.P. of 12 balls = S.P. of 17 balls = Rs.720.Hence, C.P. of 1 ball = Rs.720/12 = Rs. 60.
Click here to see the full blog post
Looks like your connection to Examsbook was lost, please wait while we try to reconnect.