Your Sister Practised Her Dance Routine For 45 Minutes She Stooped At 4:50 What Time Did She Start
Introduction
In this article, we will delve into the world of mathematics and solve a simple yet intriguing problem. Our protagonist, your sister, has been practicing her dance routine for 45 minutes, and we need to determine the time she started. To do this, we will use basic arithmetic operations and apply logical reasoning. So, let's get started and uncover the mystery of the dance routine.
The Problem
Your sister practiced her dance routine for 45 minutes and stopped at 4:50. We need to find out what time she started her practice.
Step 1: Understand the Given Information
We are given two pieces of information:
- Your sister practiced her dance routine for 45 minutes.
- She stopped at 4:50.
Step 2: Convert the Time to a Standard Format
To make calculations easier, let's convert the time to a 24-hour format. The time 4:50 in 24-hour format is 16:50.
Step 3: Subtract the Practice Time from the Stopping Time
Now, let's subtract the practice time (45 minutes) from the stopping time (16:50). To do this, we need to convert the practice time to hours and minutes. Since there are 60 minutes in an hour, we can convert 45 minutes to 0 hours and 45 minutes.
Now, let's subtract 0 hours and 45 minutes from 16 hours and 50 minutes.
16 hours and 50 minutes - 0 hours and 45 minutes = 16 hours and 5 minutes
Step 4: Determine the Starting Time
Since we subtracted 45 minutes from 16:50, we need to add 45 minutes to the result to get the starting time. However, we need to be careful here. When we subtract 45 minutes from 16:50, we are essentially moving backwards in time. So, to get the starting time, we need to add 45 minutes to 16:50, but we need to make sure we don't exceed 16:50.
Let's add 45 minutes to 16:50:
16:50 + 45 minutes = 17:35
However, this is not the correct answer. We need to make sure we don't exceed 16:50. Since 45 minutes is more than 50 minutes, we need to subtract 1 hour from 17:35 to get the correct answer.
17:35 - 1 hour = 16:35
Conclusion
Therefore, your sister started her dance routine at 16:35.
Tips and Variations
- If your sister had practiced for 45 minutes and stopped at 5:50, we would have subtracted 45 minutes from 17:50 to get the starting time.
- If your sister had practiced for 45 minutes and stopped at 3:50, we would have subtracted 45 minutes from 15:50 to get the starting time.
Real-World Applications
This problem may seem simple, but it has real-world applications in various fields, such as:
- Scheduling: Understanding time intervals and subtracting or adding time is crucial in scheduling appointments, meetings, and events.
- Finance: Calculating interest rates, loan periods, and investment returns requires a deep understanding of time intervals and arithmetic operations.
- Science: Measuring time intervals is essential in scientific experiments, data analysis, and research.
Conclusion
Q: What if my sister practiced for 30 minutes instead of 45 minutes? How would I calculate the starting time?
A: If your sister practiced for 30 minutes instead of 45 minutes, you would subtract 30 minutes from the stopping time. For example, if she stopped at 4:50, you would subtract 30 minutes from 16:50 (4:50 in 24-hour format). This would give you 16:20 as the starting time.
Q: What if my sister practiced for 1 hour and 15 minutes instead of 45 minutes? How would I calculate the starting time?
A: If your sister practiced for 1 hour and 15 minutes instead of 45 minutes, you would subtract 1 hour and 15 minutes from the stopping time. For example, if she stopped at 4:50, you would subtract 1 hour and 15 minutes from 16:50 (4:50 in 24-hour format). This would give you 15:35 as the starting time.
Q: What if my sister practiced for 2 hours and 30 minutes instead of 45 minutes? How would I calculate the starting time?
A: If your sister practiced for 2 hours and 30 minutes instead of 45 minutes, you would subtract 2 hours and 30 minutes from the stopping time. For example, if she stopped at 4:50, you would subtract 2 hours and 30 minutes from 16:50 (4:50 in 24-hour format). This would give you 14:20 as the starting time.
Q: What if my sister practiced for 45 minutes and stopped at 3:50 instead of 4:50? How would I calculate the starting time?
A: If your sister practiced for 45 minutes and stopped at 3:50 instead of 4:50, you would subtract 45 minutes from 15:50 (3:50 in 24-hour format). This would give you 15:05 as the starting time.
Q: What if my sister practiced for 45 minutes and stopped at 5:50 instead of 4:50? How would I calculate the starting time?
A: If your sister practiced for 45 minutes and stopped at 5:50 instead of 4:50, you would subtract 45 minutes from 17:50 (5:50 in 24-hour format). This would give you 17:05 as the starting time.
Q: What if my sister practiced for 45 minutes and stopped at 6:50 instead of 4:50? How would I calculate the starting time?
A: If your sister practiced for 45 minutes and stopped at 6:50 instead of 4:50, you would subtract 45 minutes from 18:50 (6:50 in 24-hour format). This would give you 18:05 as the starting time.
Q: What if my sister practiced for 45 minutes and stopped at 7:50 instead of 4:50? How would I calculate the starting time?
A: If your sister practiced for 45 minutes and stopped at 7:50 instead of 4:50, you would subtract 45 minutes from 19:50 (7:50 in 24-hour format). This would give you 19:05 as the starting time.
Q: What if my sister practiced for 45 minutes and stopped at 8:50 instead of 4:50? How would I calculate the starting time?
A: If your sister practiced for 45 minutes and stopped at 8:50 instead of 4:50, you would subtract 45 minutes from 20:50 (8:50 in 24-hour format). This would give you 20:05 as the starting time.
Conclusion
In conclusion, calculating the starting time of your sister's dance routine requires a basic understanding of arithmetic operations and logical reasoning. By breaking down the problem into smaller steps and applying mathematical concepts, we can determine the starting time of your sister's dance routine. Whether your sister practiced for 30 minutes, 1 hour and 15 minutes, or 2 hours and 30 minutes, we can use the same mathematical concepts to calculate the starting time.