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 1/4 of the tank left, how many liters does the tank hold?

• ক 12
• খ 21
• গ 20 ✅ সঠিক উত্তর
• ঘ 18