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1. After fillings the car's fuel tank, a driver drove from P to Q and then to R. He used 2/5th portion of the fuel driving from P to Q. If she used another 7 liters to drive from Q to R and still had 1/4th of the tank left, how many liters does the tank hold?
- A. 12
- B. 12
- C. 12
- D. 12
Answer: Option C
Explanation:
Let,The tank hold = 1 litresSo,After driving from P to Q, the tank left,1 - 2/5 = 3/5Let, he used x litre to drive from Q to R.Then,3/5 - x = 1/4 => 12 -20x = 5=> 20x = 12-5 = 7 => x = 7/20Now, According to the question,7/20 means = 7So, 1 means = (7×20)/7 = 20 So, the tank hold 20 litres.Ans. 20
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