Let’s solve each problem one by one, step by step.
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Problem 1:
Mario started at 17:53 and studied for 82 minutes.
We need to find what time he stopped.
Step 1: Break 82 minutes into hours and minutes.
82 minutes = 60 minutes + 22 minutes =
1 hour and 22 minutes
Step 2: Add 1 hour to 17:53 → 18:53
Step 3: Add 22 minutes to 18:53 →
53 + 22 = 75 minutes → that’s 1 hour and 15 minutes over
So, 18:53 + 22 min = 19:15
✔ Final Answer for #1:
19:15
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Problem 2:
Gym from 11:45 to 14:20. How long?
Step 1: From 11:45 to 12:00 → 15 minutes
Step 2: From 12:00 to 14:00 → 2 hours = 120 minutes
Step 3: From 14:00 to 14:20 → 20 minutes
Total = 15 + 120 + 20 =
155 minutes
Or in hours and minutes: 155 ÷ 60 = 2 hours and 35 minutes
✔ Final Answer for #2:
2 hours and 35 minutes (or 155 minutes)
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Problem 3:
25 seconds per page × 12 pages = ?
25 × 12 = 300 seconds
Convert to minutes: 300 ÷ 60 =
5 minutes
✔ Final Answer for #3:
5 minutes
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Problem 4:
Game started at 20:30, lasted 90 minutes.
90 minutes = 1 hour 30 minutes
Add to 20:30:
20:30 + 1 hour = 21:30
21:30 + 30 minutes =
22:00
✔ Final Answer for #4:
22:00 (or 10:00 pm)
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Problem 5:
Went to bed at 21:20, woke up at 6:20 next morning.
From 21:20 to midnight (24:00):
24:00 - 21:20 = 2 hours 40 minutes
From midnight to 6:20 = 6 hours 20 minutes
Total sleep = 2h40m + 6h20m = 8 hours + 60 minutes =
9 hours
✔ Final Answer for #5:
9 hours
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Problem 6:
Type 20 words in 30 seconds. How long for 500 words?
First, find how many sets of 20 words are in 500:
500 ÷ 20 = 25 sets
Each set takes 30 seconds → 25 × 30 = 750 seconds
Convert to minutes: 750 ÷ 60 = 12.5 minutes → which is
12 minutes and 30 seconds
✔ Final Answer for #6:
12 minutes and 30 seconds
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Final Answer:
1. 19:15
2. 2 hours and 35 minutes
3. 5 minutes
4. 22:00
5. 9 hours
6. 12 minutes and 30 seconds
Parent Tip: Review the logic above to help your child master the concept of time word problems worksheet grade.
