4040. There are four times more passenger cars at a gas station than trucks. The probability that a passing car will arrive at a gas station is 0.03 for a truck, and 0.25 for a passenger car. To the place where the gas station is located some car is approaching. What is the probability that she will come to the gas station?

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)