Question

two groups of tourists are visiting a skyscraper, and they are currently on the ground floor. the first group boards an elevator that is moving up at a speed of 66 meters per minute. when it has traveled 200 meters, the second group gets on an express elevator that goes up at a speed of 200 meters per minute. how long will it be before the second elevator catches up to the first?

Answer 1

1 minute

because the first elevator has traveled 200 meters and the second elevator goes 200 meters in one minute so they will catch up with the first group in 1 minute.