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CAAS SAR-66 Module 1 Mathematics Practice Questions - CAAS SAR-66 Category B1 B2 Licence Exam - Module 1 Mathematics (Singapore) Exam

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A hydraulic fluid mixture requires a ratio of mineral oil to chemical additive of 7 : 3. If 21.0 liters of mineral oil are used, how many liters of additive must be added?
Correct Answer:
9.0 liters

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