Q. Type the missing number to complete the proportion.20 chairs at 4 tables = ____ chairs at 2 tables
Identify Ratio: Identify the ratio of chairs to tables from the given information. 20 chairs at 4 tables means 20 chairs for every 4 tables. Calculation: 20 chairs /4 tables =5 chairs per table.
Apply Ratio: Apply the ratio to find the number of chairs at 2 tables. Calculation: 5 chairs/table ×2 tables =10 chairs.