All questions of Time for Grade 6 Exam

Understanding the Time Calculation
To determine how long the film lasts, we need to calculate the difference between the start time and the end time.
Step 1: Identify the Start and End Times
- Start Time: 6:15 p.m.
- End Time: 8:00 p.m.
Step 2: Break Down the Time
- From 6:15 p.m. to 7:00 p.m. is 45 minutes.
- From 7:00 p.m. to 8:00 p.m. is 1 hour (or 60 minutes).
Step 3: Add the Two Time Intervals
- Now, we sum up the two intervals:
- 45 minutes (from 6:15 to 7:00)
- 60 minutes (from 7:00 to 8:00)
- Total time = 45 minutes + 60 minutes = 105 minutes.
Step 4: Convert Minutes to Hours and Minutes
- 105 minutes can be converted into hours and minutes:
- 1 hour equals 60 minutes.
- So, 105 minutes is equal to 1 hour and 45 minutes.
Conclusion
The total duration of the film is 1 hour and 45 minutes. Therefore, the correct answer is option B.

Understanding Temperature Conversion
When converting Celsius to Fahrenheit, we use the formula:
F = (C × 9/5) + 32
Here, F represents Fahrenheit and C represents Celsius.
Step-by-Step Calculation
1. Insert the Celsius Value
For this problem, we start with 25°C.
2. Multiply by 9/5
Calculate: 25 × 9/5
- 25 × 9 = 225
- 225 ÷ 5 = 45
3. Add 32
Now, add 32 to the result obtained in the previous step:
45 + 32 = 77
Final Result
The conversion of 25°C results in 77°F.
Answer Choices
Based on the calculation:
- a) 70°F
- b) 75°F
- c) 77°F (Correct Answer)
- d) 80°F
The correct answer is option C: 77°F.
Conclusion
Thus, when converting 25 degrees Celsius to Fahrenheit, we find that the correct answer is indeed 77°F, confirming option C as the right choice. Understanding and using the conversion formula effectively allows us to switch between Celsius and Fahrenheit with ease.

Understanding Time Conversion
To calculate the total number of seconds in 5 minutes and 30 seconds, we need to convert both minutes and seconds into seconds. Here’s how you can do it.
Step 1: Convert Minutes to Seconds
- There are 60 seconds in 1 minute.
- Therefore, to convert 5 minutes into seconds:
- 5 minutes × 60 seconds/minute = 300 seconds
Step 2: Add the Remaining Seconds
- We have an additional 30 seconds to add to the conversion.
Step 3: Total Calculation
- Now, add the seconds from minutes to the additional seconds:
- 300 seconds (from 5 minutes) + 30 seconds = 330 seconds
Final Answer
- Therefore, the total time of 5 minutes and 30 seconds is 330 seconds.
This matches option B from the provided choices.
To summarize:
- 5 minutes = 300 seconds
- 30 seconds = 30 seconds
- Total = 300 + 30 = 330 seconds
So, the correct answer is option B: 330 seconds.

Understanding the Match Duration
To determine how long the cricket match lasted, we need to calculate the time from the start to the end of the match.
Step 1: Identify the Start and End Times
- Start Time: 2:30 p.m.
- End Time: 6:00 p.m.
Step 2: Calculate the Duration
We will break down the calculation into hours and minutes.
From 2:30 p.m. to 6:00 p.m.
- First, calculate the time from 2:30 p.m. to 3:00 p.m.:
- 30 minutes (from 2:30 to 3:00)
- Next, calculate the full hours from 3:00 p.m. to 6:00 p.m.:
- 3 hours (from 3:00 to 6:00)
Step 3: Combine the Hours and Minutes
Now, we add the time intervals together:
- 30 minutes (from 2:30 to 3:00)
- 3 hours (from 3:00 to 6:00)
Thus, the total duration of the match is:
- Total Duration = 3 hours + 30 minutes
Conclusion
The total duration of the cricket match is 3 hours and 30 minutes, which corresponds to option 'C'.
This confirms that the match lasted for 3 hours 30 minutes in total.

Understanding Time Conversion
To convert hours and minutes into minutes, we need to break down the time into its components and then perform the necessary calculations.
Step 1: Convert Hours to Minutes
- 1 hour is equal to 60 minutes.
- Therefore, 2 hours can be calculated as:
- 2 hours x 60 minutes/hour = 120 minutes.
Step 2: Add Additional Minutes
- Next, we have 45 minutes to add to the previous total.
- So, we add 45 minutes to 120 minutes:
- 120 minutes + 45 minutes = 165 minutes.
Conclusion
The total time of 2 hours and 45 minutes is equivalent to 165 minutes.
Hence, the correct answer is option 'B'.
Summary of the Calculation
- 2 hours = 120 minutes
- 45 minutes = 45 minutes
- Total = 120 minutes + 45 minutes = 165 minutes
With this breakdown, it is clear why the answer is option 'B' (165 minutes). Understanding these conversions is essential in solving various time-related problems in mathematics.

Understanding Freezing Points
The freezing point of water is a fundamental concept in science, particularly in thermodynamics. It indicates the temperature at which water changes from a liquid to a solid (ice).
Freezing Point in Celsius
- The freezing point of water is established as 0°C in the Celsius scale.
Converting Celsius to Fahrenheit
To convert Celsius to Fahrenheit, you can use the formula:
- Fahrenheit (°F) = (Celsius (°C) × 9/5) + 32
Applying this formula for the freezing point of water:
- Substitute 0°C into the formula:
- Fahrenheit (°F) = (0 × 9/5) + 32
- This simplifies to:
- Fahrenheit (°F) = 0 + 32 = 32°F
Conclusion
- Therefore, the freezing point of water in Fahrenheit is 32°F.
Answer Options
- a) 32°F (Correct)
- b) 0°F
- c) 50°F
- d) 100°F
In summary, the conversion from Celsius to Fahrenheit shows that the correct answer is option 'A', which represents the freezing point of water accurately in Fahrenheit.