3 types of proportion
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The document discusses three types of proportions: 1. Direct proportion - when one quantity increases, the other increases at the same rate and vice versa. 2. Inverse proportion - when one quantity increases, the other decreases and vice versa. 3. Partitive proportion - a whole is divided into parts proportional to a given ratio. It then provides four example problems and asks to identify which type of proportion each illustrates and solve them.
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3 types of proportion
- 2. 1. DIRECT PROPORTION- When one quantity increases, the other quantity increases at the same rate and vice versa. EX: The bus fare for an 80 km trip is P65. how much is the bus fare for a 320 km trip?
- 3. 2. INVERSE PROPORTION- When one quantity increases, the other quantity decreases, and vice versa. EX : If 6 men can plow a field in 2 days. How long will 3 men do it?
- 4. 3. PARTITIVE PROPORTION A whole is divided into parts that is proportional to the given ratio. EX : The sum of two numbers is 215. If the ratio is 2:3, find the larger number.
- 5. IDENTIFY THE TYPE OF PROPORTION THAT THE FOLLOWING PROBLEMS ILLUSTRATE. THEN SOLVE THE PROBLEMS. 1. It takes 3 salesmen 8 days to sell 5, 000 boxes of soap. If 2 more salesmen are added, how long will it take them?
- 6. 2. If 3 eggs cost P8.00, how much will 12 eggs cost? 3. Three boys sold garlands in the ratio of 2:3:4. Together they sold 225 garlands. How many garlands did each boy sell? 4. A basket of food is sufficient to feed 15 persons for 3 days. How many days would it last for 10 persons?