Malinis dance class is at 10 a.m. Her lesson ends 45 minutes later. At...
Understanding the question
The question states that Malini's dance class starts at 10 a.m. and ends 45 minutes later. We need to determine the time at which her dance class ends.
Solving the problem
To solve this problem, we need to add 45 minutes to the starting time of the dance class. Let's break down the steps to find the answer:
Step 1: Convert the starting time to minutes.
The starting time of the dance class is 10 a.m. In a 12-hour clock system, 10 a.m. is equivalent to 600 minutes. This is because each hour has 60 minutes and 10 hours is equal to 600 minutes.
Step 2: Add the duration of the lesson.
The duration of the lesson is 45 minutes. We add this duration to the starting time of 600 minutes.
600 minutes + 45 minutes = 645 minutes
Step 3: Convert the total minutes back to the 12-hour clock system.
To convert the total minutes back to the 12-hour clock system, we need to divide the total minutes by 60 and find the remainder. The quotient will give us the hour, and the remainder will give us the minutes.
645 minutes ÷ 60 = 10 hours with a remainder of 45 minutes
This means that the class ends at 10 hours and 45 minutes.
Step 4: Convert the 24-hour clock system to the 12-hour clock system.
Since the question asks for the time in the 12-hour clock system, we need to convert the 24-hour clock system time to the 12-hour clock system time.
10 hours in the 24-hour clock system is equivalent to 10 a.m. in the 12-hour clock system.
Therefore, Malini's dance class ends at 10:45 a.m.
Answer: The correct option is (b) 10:45 a.m.