Question 1
A boat travels at 12 km/h in still water. Stream speed is 5 km/h. What is the difference between upstream and downstream time for 60 km?
Step-by-step:
1. Downstream speed = 17 km/h, Time = 3.5 hours
2. Upstream speed = 7 km/h, Time = 8.6 hours
3. Difference = 8.6 - 3.5 = 5.1 hours
1. Downstream speed = 17 km/h, Time = 3.5 hours
2. Upstream speed = 7 km/h, Time = 8.6 hours
3. Difference = 8.6 - 3.5 = 5.1 hours