After 38 liters of petrol were poured into the tank, it was still 5% empty. How much petrol must be poured into the tank in order to fill it?
Answers.
A) 7 liters B) 9 liters C) 4 liters D) 2 liters E) 6 liters
95% ----------- 38   5% ------------ ? =&gt; 2 liters   Answer:2 liters
<result>D</result>
After 38 liters of petrol were poured into the tank, it was still 5% empty. How much petrol must be poured into the tank in order to fill it?