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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: The ratio of 100 meters to 1 kilometer is 1:10.FalseTrue Q 2: The ratio of 1 gram to 1 kg is 1:1.TrueFalse Q 3: Ann swam ten laps in 24 minutes while Mary took only 21 minutes to do the same number of laps. The ratio of the time taken by Ann to the time taken by Mary is 21:24 = 7:8.TrueFalse Q 4: The ratio of 30 minutes to 3 hours is 30:3.FalseTrue Question 5: This question is available to subscribers only! Question 6: This question is available to subscribers only!