Elapsed Timed Word Problems

Jack ran a marathon in 2 hours and 17 minutes. He crossed the finish line at 10:33 a.m. What time did the race start?

Mrs. Kennedy’s 3rd-grade class is going to the aquarium on a field trip. They are scheduled to arrive at 9:10 a.m. and leave at 1:40 p.m. How long will they spend at the aquarium?

Becky is meeting her friend at the library at 12:45 p.m. It takes her 25 minutes to get to the library. What time will she need to leave her house to arrive on time?

Marci was babysitting for her cousin. Her cousin was gone for 3 hours and 40 minutes. Marci left at 9:57 p.m. What time did she start babysitting?

Dad says dinner will be ready in 35 minutes. It’s 5:30 p.m. now. What time will dinner be ready?

Caleb and his friends went to see a movie at 7:35 p.m. They left at 10:05 p.m. How long was the movie?

Natasha has a dentist appointment at 10:40 a.m. It should last 35 minutes. What time will she finish?

The train left the terminal at 11:20 a.m. and arrived at its destination at 2:40 p.m.

How long did the train travel?

How can we solve this word problem?

• Add 2 hours and 40 minutes to 2:40 p.m.(Count forward)

• Subtract 2 hours and 40 minutes to 11:20 a.m.(Count back)

• Add 2 hours and 20 minutes to 11:20 a.m. (Count forward)

• Subtract 2 hours and 20 minutes to 2:40 p.m.(Count back)

The bus departs the bus terminal every 2 hours.

If the first bus is scheduled to depart at 10:35 a.m., when should the second bus depart?

How should we solve this word problem?

We should ​ (a)   2 hours to 10:35 A.M.

• add

• subtract

The train left the terminal at 11:20 a.m. and arrived at its destination at 2:40 p.m.

How long did the train travel?

What type of word problem is this?

• Start time unknown

• End time unknown

• Duration unknown