A container is full. After 4 liters are removed from it, the container is full. How many liters must be added back to completely refill the container?
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cheers!
thanks for posting
wait why is the answer not 12? i keep getting 12 somehow. can someone explain what i'm missing
you probably found the total capacity and stopped there, but the question asks how much to ADD to refill, so you need the empty part, not the whole thing
the difference between 5/6 and 2/3 is 1/6, and that equals 4 liters. then just find what fraction is left empty and convert. solid question for practicing fractions
easy level for sure but i appreciate that they made you read carefully, almost picked the capacity as the answer
What it tests
Your ability to convert between fractions, ratios, and decimals and to reason proportionally.
Common trap
Cross-multiplying incorrectly or mixing up the ratio parts — a part:part ratio is not a fraction of the whole.