Problem Analysis:
The task involves analyzing four pairs of clocks (Clock A and Clock B) to determine:
1. The time shown on Clock A.
2. The time shown on Clock B.
3. The elapsed time between Clock A and Clock B.
Each clock face shows the hour and minute hands, which need to be interpreted correctly to determine the time.
---
Solution:
####
Pair 1:
-
Clock A:
- Hour hand is between 1 and 2.
- Minute hand is at 2 (which represents 10 minutes past the hour).
- Time on Clock A:
1:10.
-
Clock B:
- Hour hand is between 9 and 10.
- Minute hand is at 9 (which represents 45 minutes past the hour).
- Time on Clock B:
9:45.
-
Elapsed Time:
- From 1:10 to 9:45:
- From 1:10 to 9:10 is 8 hours.
- From 9:10 to 9:45 is 35 minutes.
- Total elapsed time:
8 hours and 35 minutes.
---
####
Pair 2:
-
Clock A:
- Hour hand is at 10.
- Minute hand is at 12 (which represents 0 minutes past the hour).
- Time on Clock A:
10:00.
-
Clock B:
- Hour hand is between 9 and 10.
- Minute hand is at 7 (which represents 35 minutes past the hour).
- Time on Clock B:
9:35.
-
Elapsed Time:
- From 9:35 to 10:00:
- This is a straightforward calculation of 25 minutes.
- Total elapsed time:
25 minutes.
---
####
Pair 3:
-
Clock A:
- Hour hand is between 10 and 11.
- Minute hand is at 1 (which represents 5 minutes past the hour).
- Time on Clock A:
10:05.
-
Clock B:
- Hour hand is between 1 and 2.
- Minute hand is at 3 (which represents 15 minutes past the hour).
- Time on Clock B:
1:15.
-
Elapsed Time:
- From 10:05 to 1:15:
- From 10:05 to 12:05 is 2 hours.
- From 12:05 to 1:15 is 1 hour and 10 minutes.
- Total elapsed time:
3 hours and 10 minutes.
---
####
Pair 4:
-
Clock A:
- Hour hand is between 1 and 2.
- Minute hand is at 2 (which represents 10 minutes past the hour).
- Time on Clock A:
1:10.
-
Clock B:
- Hour hand is between 9 and 10.
- Minute hand is at 9 (which represents 45 minutes past the hour).
- Time on Clock B:
9:45.
-
Elapsed Time:
- From 1:10 to 9:45:
- From 1:10 to 9:10 is 8 hours.
- From 9:10 to 9:45 is 35 minutes.
- Total elapsed time:
8 hours and 35 minutes.
---
Final Answers:
1.
Pair 1:
- Clock A:
1:10
- Clock B:
9:45
- Elapsed Time:
8 hours and 35 minutes
2.
Pair 2:
- Clock A:
10:00
- Clock B:
9:35
- Elapsed Time:
25 minutes
3.
Pair 3:
- Clock A:
10:05
- Clock B:
1:15
- Elapsed Time:
3 hours and 10 minutes
4.
Pair 4:
- Clock A:
1:10
- Clock B:
9:45
- Elapsed Time:
8 hours and 35 minutes
---
Boxed Final Answer:
\[
\boxed{
\begin{array}{ccc}
\text{Pair 1:} & \text{Clock A: 1:10, Clock B: 9:45, Elapsed Time: 8 hours and 35 minutes} \\
\text{Pair 2:} & \text{Clock A: 10:00, Clock B: 9:35, Elapsed Time: 25 minutes} \\
\text{Pair 3:} & \text{Clock A: 10:05, Clock B: 1:15, Elapsed Time: 3 hours and 10 minutes} \\
\text{Pair 4:} & \text{Clock A: 1:10, Clock B: 9:45, Elapsed Time: 8 hours and 35 minutes}
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of fourth grade telling time worksheet.
