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### MEAP Preparation - Grade 7 Mathematics2.6 Ratio Word Problems

 Ratio Is a comparison of two numbers. The two numbers in the ratio are separated with a colon (:). It can be written as x/y or x:y or x to y Note: To write a ratio, remember to use the same unit. Examples: Write the ratio of 4 and 5. It can be written as 4:5 or as a fraction 4/5, and we say the ratio is four to five. Express the ratio of 1 hour to 1 day. Solution: Convert days to hours. 1 day = 24 hours ratio of 1 hour to 1 day is written as 1:24 Proportion: is when you equate two ratios. Example: Solve for x in 4:x = 9:18 Solution: Rewrite the ratio in fraction form: 4/x = 9/18 Cross-multiply: 9x = 72 so x = 8 Directions: Choose the correct answers. Also write at least ten examples of your own.
 Q 1: John painted 9 tables and 18 chairs. The ratio of tables painted to chairs painted can be represented as 9:18 = 1:2.TrueFalse Q 2: The ratio of 30 minutes to 3 hours is 30:3.TrueFalse Q 3: The ratio of 1 gram to 1 kg is 1:1.FalseTrue Q 4: The ratio of an hour to 15 minutes is 4:1.TrueFalse Q 5: The ratio of 1 feet to 20 inches is 12:20.TrueFalse Q 6: The ratio of 4 days to a week is 4:7.TrueFalse Q 7: The ratio of 1 meter to 1 cm is 100:1.TrueFalse Q 8: The ratio of 7 hours to 120 minutes is 7:2.TrueFalse Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!