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Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion |
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August 3rd, 2018, 06:34 PM | #11 |
Senior Member Joined: Jan 2014 From: The backwoods of Northern Ontario Posts: 390 Thanks: 70 |
Mixture #1 3 cups of water mixed with 5 cups of milk in one container. Mixture #2 7 cups of water mixed with 8 cups of milk in another. Mixture #1 is to be mixed with Mixture #2 in the ratio of 4:7 So 4 times Mixture #1 would be 12:20 (12 cups of water and 20 cups of milk) And 7 times Mixture #2 would be 49:56 (49 cups of water and 56 cups of milk) Now add all the water together, and add all the milk together, and from that you have the required ratio. |
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August 3rd, 2018, 07:55 PM | #12 |
Global Moderator Joined: Dec 2006 Posts: 20,270 Thanks: 1958 |
That's incorrect and doesn't give the ratio. However, the ratio wasn't required, just the reason why 4:7 wouldn't be correct, which has already been explained.
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