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1. A patrol tank that is 1/2 full has 8 gallons petrol removed. The tank is then 1/10 full. What is the capacity, in gallons of the tank?
- A. 40
- B. 40
- C. 40
- D. 40
Answer: Option C
Explanation:
Petrol removal = 1/2 - 1/10 = 2/5
2/5 of capacity = 8 gallons
So, full capacity = 8 x 5 / 2 = 20 gallons
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