A bee flies from a petunia to a marigold at an average speed of 3 meters per second. Immediately upon reaching the marigold the bee turns around and flies back to the petunia at an
Average speed of 6 meters per second, following his original path. What was the bee's average
Speed for the round trip?
A) 3 meters per second
B) 4 meters per second
C) 4.5 meters per second
D) 6 meters per second

Question

Quizplus · Accepted Answer

The average speed for a round trip is calculated using the formula for average speed, which is total distance divided by total time. Let's assume the distance between the petunia and the marigold is $d$ meters. The time taken to go from the petunia to the marigold is $d/3$ seconds, and the time taken to return is $d/6$ seconds. The total distance for the round trip is $2d$ meters, and the total time is $d/3 + d/6 = 2d/6 + d/6 = 3d/6 = d/2$ seconds. Therefore, the average speed is $2d / (d/2) = 4$ meters per second.

A Bee Flies from a Petunia to a Marigold at an Average