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All questions of Time and Speed for Grade 5 Exam

How many hours and minutes are there in 250 minutes?
  • a)
    4 hours 10 minutes
  • b)
    4 hours 15 minutes
  • c)
    4 hours 20 minutes
  • d)
    4 hours 25 minutes
Correct answer is option 'A'. Can you explain this answer?

Rutuja Yadav answered
Understanding Minutes and Hours
To convert minutes into hours and minutes, it’s essential to know the basic relationship between these two units of time. There are 60 minutes in one hour.
Step-by-Step Conversion
1. Divide the Total Minutes by 60
To find out how many hours are in 250 minutes, you need to divide 250 by 60.
- 250 ÷ 60 = 4 hours (since 4 is the whole number)
2. Calculate Remaining Minutes
After determining the hours, calculate the leftover minutes.
- Multiply the whole hours by 60: 4 hours × 60 minutes/hour = 240 minutes
- Subtract this from the total minutes: 250 minutes - 240 minutes = 10 minutes
3. Final Result
Therefore, 250 minutes can be expressed as:
- 4 hours and 10 minutes.
Conclusion
The correct answer is option 'A': 4 hours 10 minutes. This confirms that when you break down 250 minutes, you get 4 full hours and 10 extra minutes.
Understanding this conversion is vital for managing time effectively, especially in daily activities and schedules.

What is the elapsed time between 8:15 AM and 12:45 PM?
  • a)
    4 hours 15 minutes
  • b)
    4 hours 30 minutes
  • c)
    4 hours 45 minutes
  • d)
    5 hours
Correct answer is option 'B'. Can you explain this answer?

Sankar Khanna answered
Understanding the Time Calculation
To find the elapsed time between two points in the day, we can break it down into hours and minutes. In this case, we need to calculate the time from 8:15 AM to 12:45 PM.
Step 1: Calculate the Hours
- Start time: 8:15 AM
- End time: 12:45 PM
To find the number of hours between 8:15 AM and 12:45 PM:
- From 8:15 AM to 12:15 PM is 4 hours.
- Then, from 12:15 PM to 12:45 PM is an additional 30 minutes.
Step 2: Combine the Time
Now, combine the hours and minutes:
- Total time = 4 hours + 30 minutes
This gives us a total elapsed time of 4 hours and 30 minutes.
Conclusion
So, the elapsed time between 8:15 AM and 12:45 PM is:
- 4 hours 30 minutes, which corresponds to option B.
Remember, when calculating time, always break it down into manageable parts—first hours, then minutes—to avoid confusion!

Convert 500 seconds into minutes.
  • a)
    8 minutes 20 seconds
  • b)
    9 minutes 40 seconds
  • c)
    7 minutes 30 seconds
  • d)
    8 minutes 40 seconds
Correct answer is option 'A'. Can you explain this answer?

Kavya Chauhan answered
Converting Seconds to Minutes
To convert 500 seconds into minutes, we need to understand the relationship between seconds and minutes. There are 60 seconds in a minute.
Step-by-Step Conversion
- Divide the total seconds by 60:
To find out how many whole minutes are in 500 seconds, we perform the following calculation:
500 seconds ÷ 60 seconds/minute = 8.33 minutes.
- Identify whole minutes:
The whole part of 8.33 is 8 minutes.
- Calculate remaining seconds:
To find the remaining seconds, we multiply the decimal part (0.33) by 60:
0.33 × 60 seconds = 19.8 seconds, which we can round to 20 seconds.
Final Result
- Combine minutes and seconds:
Therefore, 500 seconds is equivalent to 8 minutes and 20 seconds.
Conclusion
- The correct answer is option 'A': 8 minutes 20 seconds.
- This conversion is crucial for understanding time better, especially in various real-life scenarios.
By following these simple steps, you can easily convert any number of seconds into minutes and seconds!

Convert 5 hours into seconds.
  • a)
    15,000 seconds
  • b)
    18,000 seconds
  • c)
    20,000 seconds
  • d)
    30,000 seconds
Correct answer is option 'B'. Can you explain this answer?

Sandeep Das answered
Understanding Time Conversion
To convert hours into seconds, we need to know the basic units of time:
- 1 hour = 60 minutes
- 1 minute = 60 seconds
Step-by-Step Calculation
1. Calculate Minutes in 5 Hours
- Since there are 60 minutes in an hour, we can multiply:
- 5 hours × 60 minutes/hour = 300 minutes
2. Calculate Seconds in 300 Minutes
- Now, we need to convert minutes into seconds:
- 300 minutes × 60 seconds/minute = 18,000 seconds
Final Answer
After performing the calculations, we find that 5 hours is equal to 18,000 seconds. Therefore, the correct answer is option 'B'.
Summary
- Conversion Formula:
- 1 hour = 60 minutes
- 1 minute = 60 seconds
- Calculation:
- 5 hours = 300 minutes
- 300 minutes = 18,000 seconds
This method of breaking down the time units ensures accurate conversions and helps you understand the relationship between hours, minutes, and seconds effectively.

Convert 25°C to Fahrenheit.
  • a)
    70°F
  • b)
    75°F
  • c)
    77°F
  • d)
    80°F
Correct answer is option 'C'. Can you explain this answer?

Asha Sengupta answered
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.

Convert 6:30 PM into 24-hour clock format.
  • a)
    16:30 hours
  • b)
    17:30 hours
  • c)
    18:30 hours
  • d)
    19:30 hours
Correct answer is option 'C'. Can you explain this answer?

Rohini Seth answered
6:30 PM can be converted to the 24-hour clock format as follows:
  • To convert to 24-hour time, add 12 to the hour for times in the PM.
  • Thus, 6:30 PM becomes 18:30 hours.

A movie runs from 2:30 PM to 5:15 PM. How long is the movie?
  • a)
    2 hours 15 minutes
  • b)
    2 hours 45 minutes
  • c)
    3 hours 45 minutes
  • d)
    3 hours
Correct answer is option 'B'. Can you explain this answer?

Gunjan Lakhani answered
The movie starts at 2:30 PM and ends at 5:15 PM.
Calculate the total duration:
From 2:30 PM to 5:00 PM is 2 hours 30 minutes.
Add another 15 minutes to reach 5:15 PM.
Total duration: 2 hours 45 minutes.


The boiling point of water in Celsius is 100°C. What is the boiling point of water in Fahrenheit?
  • a)
     180°F
  • b)
      212°F
  • c)
      250°F
  • d)
     200°F
Correct answer is option 'B'. Can you explain this answer?

Rohini Seth answered
To calculate the boiling point of water in Fahrenheit, we use the conversion formula from Celsius to Fahrenheit:
F=(C×9/5)+32
Where:C is the temperature in Celsius (100°C for boiling water), F is the temperature in Fahrenheit.
Step-by-Step Calculation:
1.Multiply the Celsius temperature by 9/5
100×9/5=180
2. Add 32 to the result:
180+32=212
So the answer is  212°F

The freezing point of water in Celsius is 0°C. What is the freezing point of water in Fahrenheit?
  • a)
    32°F
  • b)
    0°F 
  • c)
    50°F
  • d)
    100°F
Correct answer is option 'A'. Can you explain this answer?

To find the freezing point of water in Fahrenheit, use the conversion formula from Celsius:
Formula: F = (C × 9/5) + 32
C is the temperature in Celsius (0°C for freezing water).
F is the temperature in Fahrenheit.
Step-by-Step Calculation:
  • Multiply the Celsius temperature by 9/5: 0 × 9/5 = 0
  • Add 32 to the result: 0 + 32 = 32
 The freezing point of water in Fahrenheit is 32°F.

If the temperature rises from 20°C to 35°C, what is the increase in temperature?
  • a)
    10°C
  • b)
    12°C
  • c)
    15°C
  • d)
    20°C
Correct answer is option 'C'. Can you explain this answer?

Gunjan Lakhani answered
The increase in temperature can be calculated simply by subtracting the initial temperature from the final temperature.
  • Initial Temperature: 20°C
  • Final Temperature: 35°C
  • Calculation: 35°C - 20°C
  • Result: 15°C
Thus, the increase in temperature is 15°C.

Calculate the total time of three consecutive events: the first lasts 45 minutes, the second 1 hour 15 minutes, and the third 35 minutes.
  • a)
    2 hours 35 minutes
  • b)
    3 hours
  • c)
    2 hours 15 minutes
  • d)
    2 hours 25 minutes
Correct answer is option 'A'. Can you explain this answer?

Edu Impact answered
Let’s add up all the times:
First event: 45 minutes
Second event: 1 hour 15 minutes is the same as 75 minutes (because 1 hour = 60 minutes + 15 minutes)
Third event: 35 minutes
Now, add these times together: 45 minutes + 75 minutes + 35 minutes = 155 minutes. Since 60 minutes make 1 hour, 155 minutes is 2 hours (120 minutes) and 35 minutes left over. So, the total is 2 hours and 35 minutes.

Convert 2 hours 45 minutes into minutes.
  • a)
    150 minutes
  • b)
    165 minutes
  • c)
    170 minutes
  • d)
    175 minutes
Correct answer is option 'B'. Can you explain this answer?

Anand thakur answered
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.

If the temperature at 8:00 AM is 12°C and it rises by 5 degrees by noon, what is the new temperature?
  • a)
    15°C
  • b)
    16°C
  • c)
    17°C
  • d)
    20°C
Correct answer is option 'C'. Can you explain this answer?

Edu Impact answered
The initial temperature at 8:00 AM is 12°C.
The temperature rises by 5 degrees by noon.
Calculate the new temperature: 12°C + 5°C = 17°C.
The new temperature is 17°C.

If a class starts at 9:15 AM and lasts for 2 hours and 45 minutes, what time does it end?
  • a)
    11:00 AM
  • b)
    12:00 PM
  • c)
    11:45 AM
  • d)
    2:00 PM
Correct answer is option 'B'. Can you explain this answer?

Juhi Kumar answered
Understanding the Class Duration
To find out when the class ends, we need to start from the beginning time and add the duration of the class to it.
Starting Time
- The class starts at 9:15 AM.
Duration of the Class
- The class lasts for 2 hours and 45 minutes.
Calculating the End Time
1. Add the Hours:
- Start with the 2 hours.
- Adding 2 hours to 9:15 AM gives us 11:15 AM.
2. Add the Minutes:
- Next, add the 45 minutes.
- Adding 45 minutes to 11:15 AM:
- 15 minutes will take us to 11:30 AM.
- Then, adding the remaining 30 minutes takes us to 12:00 PM.
Conclusion
- Therefore, when you combine both parts, the class that starts at 9:15 AM and lasts for 2 hours and 45 minutes ends at 12:00 PM.
Correct Answer
- The correct answer is option B) 12:00 PM.

Convert 95°F to Celsius.
  • a)
     30°C
  • b)
    32°C
  • c)
    35°C
  • d)
    37°C
Correct answer is option 'C'. Can you explain this answer?

Rohini Seth answered
To convert Fahrenheit to Celsius, use the following formula:
Subtract 32 from the Fahrenheit temperature.
Multiply the result by 5/9.
For 95°F:
Subtract 32: 95 - 32 = 63
Multiply by 5/9: 63 × 5/9 = 35°C
Therefore, 95°F is equal to 35°C.

The normal body temperature is 98.6°F. Convert this temperature to Celsius.
  • a)
    36.6°C
  • b)
    37.0°C
  • c)
    37.6°C
  • d)
    38.1°C
Correct answer is option 'B'. Can you explain this answer?

The normal body temperature is 98.6°F, which needs to be converted to Celsius.
The formula for conversion is: (°F - 32) × 5/9 = °C.
Applying the conversion: (98.6 - 32) × 5/9.
This calculates to approximately 37.0°C.
Therefore, the converted temperature is 37.0°C.

Convert 36°F to Celsius.
  • a)
    0°C
  • b)
    2°C
  • c)
    4°C
  • d)
    8°C
Correct answer is option 'B'. Can you explain this answer?

Using the conversion formula C = (F - 32) × 5/9, (36 - 32) × 5/9 = 2.2°C, which rounds to approximately 2°C.

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