If a pilot balloon rises at a rate of 100 m per minute,and if it disappears into a deck of stratus clouds 1,500 m (5,000 ft)thick in 5 minutes,what is the ceiling of the cloud layer?
A) 100 m (300 ft)
B) 300 m (1,000 ft)
C) 500 m (1,600 ft)
D) 1,500 m (5,000 ft)
E) 2,000 m (6,400 ft)

Question

Quizplus · Accepted Answer

If the pilot balloon rises at a rate of 100 m per minute, it will cover a total distance of 500 m (100 m/minute x 5 minutes) before disappearing into the cloud layer. Therefore, the ceiling of the cloud layer is 500 m (1,600 ft).

If a Pilot Balloon Rises at a Rate of 100