If a train departs at 9:05 AM and arrives at 11:50 AM, how long is the trip?

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Multiple Choice

If a train departs at 9:05 AM and arrives at 11:50 AM, how long is the trip?

Explanation:
From 9:05 AM to 11:50 AM is an elapsed time problem. Subtract the start time from the end time by parts: hours and minutes. The hours difference is 11 minus 9, which is 2 hours. The minutes difference is 50 minus 5, which is 45 minutes. Since the end minutes are greater than the start minutes, no borrowing is needed. Put together, the trip lasts 2 hours and 45 minutes. You can also check by counting forward: 9:05 → 10:05 (1 hour), → 11:05 (2 hours), then to 11:50 adds 45 minutes, totaling 2 hours 45 minutes.

From 9:05 AM to 11:50 AM is an elapsed time problem. Subtract the start time from the end time by parts: hours and minutes. The hours difference is 11 minus 9, which is 2 hours. The minutes difference is 50 minus 5, which is 45 minutes. Since the end minutes are greater than the start minutes, no borrowing is needed. Put together, the trip lasts 2 hours and 45 minutes. You can also check by counting forward: 9:05 → 10:05 (1 hour), → 11:05 (2 hours), then to 11:50 adds 45 minutes, totaling 2 hours 45 minutes.

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