A train departs every 18 minutes. If the first train leaves at 6:00 AM, what time does the 5th train leave?
Answer
7:12 AM
How to solve it
1
Trains after first: 4
2
Time elapsed: 4 × 18 = 72 minutes = 1 hour 12 minutes
3
5th train: 6:00 AM + 1:12 = 7:12 AM
Hints
How many trains after the first?
Multiply by 18 minutes
Add to 6:00 AM