The price of sugar is 500 grams. 4 yuan Mall bought 1 kg new year promotion and gave away 250g. How much does uncle need 5 kilograms of sugar? How many Jin of sugar can 64 yuan sell?
The first question: 5*250= 1250 (g) Suppose you buy 5 kg, and 5000 will be delivered 1250-1250=3750 (g). After delivery, you only need to pay 3750 grams. 3750/500=7.5 3750 grams is 7.5 times that of 500 grams. 7.5*4=30 (RMB) needs to pay 30 yuan's second question: 64/ 4= 16 64 has 16 4 yuan 16 * 500 = 8000g. Assuming there is no promotion, 64 yuan can buy 8000g = 8kg 250g = 0.25kg 8 * 0.25 = 2kg, and buy 8000g and get 2000g.