A merchant has 640 kg of sugar, part of which he sells at 2% loss and the rest at 6% profit. He gains 3% on the whole. What is the difference between the quantities of sugar sold at 2% loss and that sold at 6% profit?
160 kg
x*0.98+(640-x)*1.06=640*1.03 => x=240 kg, 640-x=400 kg the difference = 400-240=160 kg
A merchant has 1925 kg of sugar, part of which he sells at 3% loss and the rest at 4% profit. He gains 2% on the whole. What is the difference between the quantities of sugar sold at 4% profit and that sold at 3% loss?
The shopkeeper has 2020 kgs of rice, part of which he sells at 1% loss and the rest at 7% profit. He gains 2% on the whole. What is the difference between the quantities of rice sold at 7% profit and that sold at 1% loss?
A merchant has 310 kg of sugar, part of which he sells at 2% loss and the rest at 8% profit. He gains 5% on the whole. What is the difference between the quantities of sugar sold at 8% profit and that sold at 2% loss?
