A trader has 50 kg of rice, a part of which he sells at 10 percent profit and the rest at 5 per cent loss. He gains 7 per cent on the whole. What is the quantity sold at 10 percent gain and 5 percent loss?
45kg, 20 kg
40kg, 15 kg
35kg, 40 kg
40 kg, 10 kg
30kg, 10 kg
Part sold at 5 % loss = 1/5 x 50 kg = 10 kg and at 10 % loss is 40 kg