Fill the seven quart. Empty into the five quart, leaving two. Mark the 7 quart jar at that 2 quart level. dump the five quart contents. Pour the 2 quarts into the five, marking its level. Fill the seven quart to the 2 quart level where marked. Fill the five quart to the two quart level, and pour it into the seven, making four quarts. Fill the five quart again to the two quart level, then pour it into the seven, making a total of six quarts.
Posted by mahi on Friday, February 9, 2007 at 12:28pm in response to math.
I don't understand this question.
Terry has been asked to make plaster of paris for the class.She needs 6 quarts of water.She has a 5 quart jar and a 7 quart jar.How can she measure 6 quarts?
To measure 6 quarts using a 5-quart and a 7-quart jar, you can follow these steps:
1. Fill the 7-quart jar completely with water.
2. Empty the 7-quart jar into the 5-quart jar. This will leave you with 2 quarts of water in the 7-quart jar.
3. Mark the level of 2 quarts on the 7-quart jar.
4. Empty the contents of the 5-quart jar.
5. Pour the 2 quarts of water from the 7-quart jar into the 5-quart jar.
6. Fill the 7-quart jar again to the marked 2-quart level.
7. Pour the 2 quarts of water from the 5-quart jar back into the 7-quart jar. Now the 7-quart jar contains 4 quarts of water.
8. Fill the 5-quart jar to the 2-quart level again.
9. Pour the water from the 5-quart jar into the 7-quart jar. This will fill the 7-quart jar to its maximum capacity of 7 quarts.
10. Now, the 5-quart jar has only 2 quarts of water left.
11. Pour the 2 quarts of water from the 5-quart jar into the 7-quart jar, which already has 7 quarts. This will give you a total of 6 quarts in the 7-quart jar.
By following these steps, Terry can measure 6 quarts of water using a 5-quart and a 7-quart jar.