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1. The mass ratio of pesticide to water is 1 ∶ 100. If you want to prepare 404kg of pesticide, how many kg of pesticide and water are needed? 2. Calculate and paint. Paint the 20 squares in the figure below with red and blue at the ratio of 2:3. How many squares should each be painted? (5 squares horizontally and 4 squares vertically) 3. During the tree planting day, the school carried out tree planting activities to beautify the campus. The ratio of willow trees planted to poplar trees is 3:5. It is known that 60 willows have been planted and how many poplar trees have been planted? 4. As shown in the figure below, the length to width ratio of a rectangle is (5) ∶ (3). It is known that the circumference of a rectangle is 96cm. What are its length and width respectively? 5. Xiao Ming and Xiao Hong are both stamp collectors. The ratio of their stamps is 7:5. It is known that Xiao Ming has 24 more stamps than Xiao Hong. How many stamps do they each have? 6. The sum of numerator and denominator of a number is 92. If 16 is subtracted from numerator and denominator at the same time, the ratio of numerator and denominator is 1 ∶ 3 7. The ratio of the number of volleyball and football in the school sports room is 9 ∶ 10, and the ratio of football and basketball is 5 ∶ 7?
1、1+100=101
Pesticide: 404x1 / 101 =?
Water: 404x100 / 101 =?
RELATED INFORMATIONS
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