Bunuel
The maximum speed that a particular truck can travel is 80 mph. Tim drives that truck on a long highway stretch of 280 miles. The first 120 miles stretch of the highway has a speed limit of 60 mph, whereas the rest of the distance speed limit is 90 mph. If Tim always remain within the speed limits and never drops below 40 mph, then which of the following could be the possible time taken by Tim to travel the entire journey?
I. 4 hours 20 minutes
II. 5 hours 30 minutes
III. 6 hours 45 minutes
A. I only
B. II only
C. I and II only
D. I and III only
E. I, II and III
Given: The maximum speed that a particular truck can travel is 80 mph. Tim drives that truck on a long highway stretch of 280 miles. The first 120 miles stretch of the highway has a speed limit of 60 mph, whereas the rest of the distance speed limit is 90 mph. Tim always remain within the speed limits and never drops below 40 mph.
Asked: Which of the following could be the possible time taken by Tim to travel the entire journey?
For first 120 miles
Speed varies from 40 mph to 60 mph
Time travelled varies from 2 hours to 3 hours
For next 160 (280-120) miles
Speed varies from 40 mph to 80 mph
Time travelled varies from 2 hours to 4 hours
Time taken by Tim to travel the entire journey varies from 4 hours to 7 hours
I. 4 hours 20 minutes POSSIBLE
II. 5 hours 30 minutes POSSIBLE
III. 6 hours 45 minutes POSSIBLE
IMO E