Final answer:
Gary's goal after a speed reading course aiming to quadruple his reading speed from 60 lpm should be to reach 240 lpm.
Step-by-step explanation:
If Gary took a speed reading course with the intention of quadrupling his reading speed from 60 words per minute (lpm), his logical goal should be to reach a reading speed of 240 lpm. This goal is based on the initial rate of 60 lpm and the desire to quadruple it, which means multiplying the original speed by four.
When relating to speeds like those mentioned in driving contexts, like 50 kilometers per hour or 10 meters per second, it's helpful to convert these values to units familiar to the reader. This helps in understanding how increasing speeds proportionally in a controlled environment, such as a reading speed course, is similar to accelerating a car from a specific speed and measuring the time it takes to reach a higher speed.