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Answer:
1. 16
2. 20 math books
3. 20 boys
4. 15 red balloons
5. 75 bananas
Step-by-step explanation:
a:b You add the a + b and divide it by the sum. Then multiply it to each ratio number.
For example, in number 1, it said that the sum of two numbers is 28 and the ratio is 3:4. 3 + 4 = 7. The sum which is 28 is to be divided by 7,; which is 4.
Multiply four to the ratio. 4*3 and 4*4. which means the numbers are 12 and 16. The bigger number is 16.