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?
A - amount of sugar sold at 3% loss A×97 + (1925 - A)×104 = 1925×102 97A + 1925×104 - 104A = 1925×102 -7A = 1925×(102 - 104) 7A = 1925×2 A = 1925×2/7 = 550 B = 1925 - 550 = 1375 = 1925 - A B - A = 1375 - 550 = 825kg.
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?
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 144 kg of sugar, part of which he sells at 3% loss and the rest at 9% profit. He gains 5% on the whole. What is the quantity of sugar sold at 3% loss?
