By selling 40 dozen bananas for ₹ 1,440, a man gains 20%. In order to gain 30%, for how much should he sell 20 dozen bananas ?A₹ 780B₹ 1,560C₹ 936D₹ 720Answer: A. ₹ 780 Read Explanation: SP of 40 dozen bananas = Rs.1440 CP × 120/100 = 1440 CP = 1440 × 100/120 = 1200 CP of 40 dozen bananas = Rs.1200 CP of 20 dozen bananas = 1200/2 = Rs.600 SP of 20 dozen bananas for 30% gain = 600 × 130\100 = Rs.780Read more in App