Let's solve each of the time word problems step by step.
---
Problem 1:
Question: Yesterday Mary started playing piano at 6:15 pm. She played for 55 minutes. At what time did she finish?
Solution:
- Start time: 6:15 pm
- Duration: 55 minutes
To find the end time:
1. Add 55 minutes to 6:15 pm.
2. Break it down:
- From 6:15 pm to 7:00 pm is 45 minutes.
- Remaining time: \( 55 - 45 = 10 \) minutes.
- Add 10 minutes to 7:00 pm, which gives 7:10 pm.
Answer: Mary finished playing at
7:10 pm.
---
Problem 2:
Question: Jenny takes a 60-minute bus ride to work every day. The bus usually leaves at 7:35 am. At what time does she arrive at work?
Solution:
- Departure time: 7:35 am
- Duration: 60 minutes (1 hour)
To find the arrival time:
1. Add 1 hour to 7:35 am.
2. \( 7:35 \text{ am} + 1 \text{ hour} = 8:35 \text{ am} \).
Answer: Jenny arrives at work at
8:35 am.
---
Problem 3:
Question: Sporty can swim 50 meters in 1 minute. How long will it take him to swim 200 meters?
Solution:
- Distance covered in 1 minute: 50 meters
- Total distance to cover: 200 meters
To find the time:
1. Calculate how many 50-meter segments are in 200 meters:
\[
\frac{200 \text{ meters}}{50 \text{ meters/minute}} = 4 \text{ minutes}
\]
Answer: It will take Sporty
4 minutes to swim 200 meters.
---
Problem 4:
Question: Yesterday Peter finished watching TV at 9:25 pm. He watched for 35 minutes. At what time did he start watching?
Solution:
- End time: 9:25 pm
- Duration: 35 minutes
To find the start time:
1. Subtract 35 minutes from 9:25 pm.
2. Break it down:
- From 9:25 pm to 9:00 pm is 25 minutes.
- Remaining time: \( 35 - 25 = 10 \) minutes.
- Subtract 10 minutes from 9:00 pm, which gives 8:50 pm.
Answer: Peter started watching TV at
8:50 pm.
---
Problem 5:
Question: John ordered a meal in a restaurant at 7:05 pm and was served 25 minutes later. At what time was his meal served?
Solution:
- Order time: 7:05 pm
- Duration: 25 minutes
To find the serving time:
1. Add 25 minutes to 7:05 pm.
2. \( 7:05 \text{ pm} + 25 \text{ minutes} = 7:30 \text{ pm} \).
Answer: John's meal was served at
7:30 pm.
---
Problem 6:
Question: A kangaroo can jump 12 times per minute. How many times can the kangaroo jump in 12 minutes?
Solution:
- Jumps per minute: 12
- Total time: 12 minutes
To find the total number of jumps:
1. Multiply the number of jumps per minute by the total time:
\[
12 \text{ jumps/minute} \times 12 \text{ minutes} = 144 \text{ jumps}
\]
Answer: The kangaroo can jump
144 times in 12 minutes.
---
Final Answers:
1.
7:10 pm
2.
8:35 am
3.
4 minutes
4.
8:50 pm
5.
7:30 pm
6.
144 jumps
\boxed{7:10 \text{ pm}, 8:35 \text{ am}, 4 \text{ minutes}, 8:50 \text{ pm}, 7:30 \text{ pm}, 144 \text{ jumps}}
Parent Tip: Review the logic above to help your child master the concept of time problem worksheet for grade 3.
