Dear Student
Cost of first type orange = Rs 0.6
cost 550 oranges of first type orange = 550*0.6 =Rs 330
Cost of second type orange = Rs 0.5
cost 240 oranges of second type orange = 240*0.5 =Rs 120
Total number of orange =550+240 =790
Cost of 1 set (10 Nos) of orange = Rs 9
Number of set of 10 orange =
cost of 79 set orange =79*9 =711
Therefore he has profit
Profit percentage =