Question

Two points, A and B, move at constant rates along the ˚umference of a ˚le whose length is 150 feet. When they move in opposite senses, they meet every:

a) 5 seconds
b) 10 seconds
c) 15 seconds
d) 20 seconds

Answer 1

The exact time interval when two points on a circumference meet cannot be determined without the individual speeds of the points. They will meet when they collectively cover half the circumference if they start at the same point, but the question does not provide enough information to choose a specific interval from the options provided.

Step-by-step explanation:

The question involves calculating the time it takes for two points moving along a circumference to meet when they move in opposite directions. Given that the circumference is 150 feet, we can assume that points A and B have combined speeds that allow them to cover the entire circumference to meet each other. Since we're not given the individual speeds of points A and B, we can't calculate their exact velocity but we can infer that their meeting point would be at half the circumference if they start at the same point. If they meet every specific time interval, that interval would represent the time it takes for them to cover half the circumference due to opposite motion, provided that the regularity of meeting every certain amount of seconds implies a uniform motion for both points without any change in speed or direction.

We don't have enough specific information to determine which option (a, b, c, or d) is correct without further input about the speeds of points A and B. Therefore, we will not make any assumptions or claim a solution for the given options.