Give the step-by-step reasoning process and then the final answer. A bus has a capacity of 200 people. If it carried 3/4 of its capacity on its first trip from city A to city B and 4/5 of its capacity on its return trip, calculate the total number of people the bus carried on the two trips?
From city A to city B, the bus carried 3 / 4 * 200 = 150 passengers. On the return trip, the bus carried 4 / 5 * 200 = 160 passengers. In total, the bus carried 160 + 150 = 310 passengers.
The final answer: 310.