Elapsed Time and Unit of Time

Convert 30 minutes to seconds.

• 180 seconds

• 1,800 seconds

• 900 seconds

• 720 seconds

Convert 24 hours to minutes.

• 0.4 minutes

• 720 minutes

• 576 minutes

• 1,440 minutes

Maria spent 15 days traveling in South America. How many hours did she spend traveling in South America?

• 450 hours

• 360 hours

• 900 hours

• 105 hours

If an event started at 5:45 AM and ended at 1:18 PM, what is the elapsed time?

• 6 hours 35 minutes

• 7 hours 33 minutes

• 7 hours 43 minutes

• 6 hours 42

If an event started at 10:05 AM and lasted 6 hours 19 minutes, what time did it end?

Amar and his friends went to a movie that started at 4:45 PM and ended at 6:20 PM. How long was the movie?

If Amar's movie ended at 6:20 PM and he got home 45 minutes later, what time did he get home?

Starting at 4:20 PM, Connie practiced piano for 90 minutes. How many hours did she practice?

• 2 hours 15 minutes

• 2 hours 30 minutes

• 1 hour 15 minutes

• 1 hour 30 minutes

Starting at 4:20 PM, Connie practiced piano for 90 minutes. At what time did Connie stop practicing piano?

If an event started at 9:17 and lasted for 5 hours 18 minutes, what time did it end?