Nate got lost looking for his car in the airport parking lot. He had to walk through every row in Section G and Section H to find it. Section G has 15 rows that each hold 10 cars. Section H has 20 rows that each hold 9 cars. If Nate can walk past 11 cars per minute, how many minutes did he spend searching the parking lot?
A step-by-step solution is:
30
First find the number of cars in Section G by multiplying the number of rows by the number of cars per row: 15 rows * 10 cars / row = 150 cars.

Then do the same thing for Section H: 20 rows * 9 cars / row = 180 cars.

Then add the two quantities of cars to find the total number of cars Nate walked past: 150 cars + 180 cars = 330 cars.

Finally, divide the number of cars Nate passed by the numbers he passes each minute to find how long he spent searching: 330 cars / 11 cars / minute = 30 minutes.

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The answer: 30