Sea water
Mixing 62 kg of seawater with 84 kg rainwater is created water containing 3.1% salt. How much percent of seawater contains salt?
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- algebra
- equation
- expression of a variable from the formula
- basic functions
- percentages
- numbers
- rational numbers
Units of physical quantities:
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