Class 5 Maths Chapter 12 Racing Seconds – Stepwise NCERT Solutions

NCERT Solutions Class 5 Maths Mela Chapter 12 Racing Seconds (2025-26)

1. Raghav practices yoga in the morning.

1. Who took the longest time?
2. Who took the least time?

Answer:
(a) Rani took the longest time (2 hours 10 minutes).
(b) Raghav took the least time (1 hour 20 minutes).

2. Let us find out

1. At what time did Raghav start practising Yoga?
2. At what time did he finish?
3. How much time did he spend practising Yoga?
4. Find the time elapsed between the given time periods. Share your strategies.
   1. 01:15 p.m. to 01:42 p.m.?
   2. 03:18 p.m. to 08:18 p.m.?
   3. 09:15 a.m. to 11:30 a.m.?
5. The table below shows the time taken by 3 children to paint a picture.
   

   Name	Time Taken
   Raghav	1 hour 20 minutes
   Rani	2 hours 10 minutes
   Ritu	1 hour 35 minutes

Answer:
1. (Information not given in text snippet.)
2. (Information not given in text snippet.)
3. (Cannot determine without start/end times.)
4. (a) 01:15 p.m. to 01:42 p.m. = 27 minutes
    (b) 03:18 p.m. to 08:18 p.m. = 5 hours
    (c) 09:15 a.m. to 11:30 a.m. = 2 hours 15 minutes
5. See table. (Already answered in Q1 for longest/least time.)

3. School Race

Akira, Sunita, and Mary are participating in a 200 m-walking race.

• 01:55 Min. Sec.
• 01:56 Min. Sec.
• 01:57 Min. Sec.

Answer: Akira won the race by finishing in 1 minute 55 seconds, which is the shortest time.

4. Estimate whether you would take seconds or minutes to complete the following activities. Tick the appropriate cell.

5. List events other than the ones listed above that you can do or that can happen in less than a minute or in a few seconds.

• Shouting your name
• Sneezing
• Jumping once
• Clapping hands
• Switching on a fan

6. Estimate and verify how many of these you can do in a minute.

7. Find out the number of times you can skip the rope in 10 seconds.

Answer: (This varies per student. For example, 15 times.)

8. How long does it take you to write the word FRIEND?

Answer: (This varies per student. For example, 4 seconds.)

9. How long does it take you to run 100m?

Answer: (This varies per student. For example, 18 seconds.)

10. Observe the clocks and fill in the blanks.

1. Rani took 12 sec. to get out of her bed.
2. Raghav took 22 sec. to move from his room to the kitchen.
3. Ritu took 11 sec. to pick up a piece of paper from the floor.
4. Raghu took 33 sec. to wash his spoon and plate.

11. Draw the missing seconds hand on the clocks on the right side.

1. Raghu took 20 sec. to read a sentence in his book.
2. Rani took 30 sec. to color a rectangle.
3. Raghav took 60 sec. to move from his home to the garden.
4. Ritu took 40 sec. to wash a plate.

Answer: Draw the seconds hand at 20, 30, 60, and 40 seconds, respectively, on each clock.

12. Zainab and Remo were converting time from hours to minutes and vice-versa.

Conversion of Hours to Minutes

1. 1 hour 10 minutes = 70 minutes
2. 2 hours 45 minutes = 165 minutes
3. 3 hours 15 minutes = 195 minutes
4. 4 hours 20 minutes = 260 minutes
5. 75 minutes = 1 hour 15 minutes
6. 150 minutes = 2 hours 30 minutes
7. 220 minutes = 3 hours 40 minutes
8. 390 minutes = 6 hours 30 minutes

13. Fill in the blanks by writing the time in the appropriate format.

14. Match the following.

15. Raghav studies Mathematics, English, Hindi, and The World Around Us subjects. He took 50 minutes to study each of the subjects. Find the total time taken in hours and minutes.

Answer: Total time = 4 × 50 minutes = 200 minutes = 3 hours 20 minutes.

16. Raghu left his house at 08:00 hours and arrived at his Nana ji’s house at 09:05 hours. How long did he take to reach his house?

Answer: He took 1 hour 5 minutes.

17. Fill in the blanks in the double number line to complete the conversions.

(i) 1 min ______ 60 sec,  2 min = 120 sec,  5 min = 300 sec,  10 min = 600 sec, 15 min = 900 sec, 20 min = 1200 sec, 25 min = 1500 sec.

1. 320 sec = 5 min 20 sec
2. 225 sec = 3 min 45 sec
3. 700 sec = 11 min 40 sec
4. 1,000 sec = 16 min 40 sec
5. 10 min 13 sec = 613 sec
6. 4 min 8 sec = 248 sec
7. 15 min 40 sec = 940 sec

18. Jyoti went to play at 06:15 PM. She came back after 1 hour 45 minutes. At what time did she reach home?

Answer: 06:15 PM + 1 hour 45 minutes = 08:00 PM.

19. Ragini took 1 hour 10 minutes to do her homework. She finished it at 09:40 PM. What time did she start?

Answer: She started at 08:30 PM.

20. A group of children left for a picnic at 08:30 AM. They returned after 4 hours and 10 minutes. At what time did they return?

Answer: 08:30 AM + 4 hours 10 minutes = 12:40 PM.

21. Raji started her homework at 06:00 PM. She finished her homework in 1 hour 30 minutes. At what time did she finish?

Answer: She finished at 07:30 PM.

22. Alya goes out to play at 05:30 PM and comes back after 1 hour 10 minutes. At what time does she come back?

Answer: She comes back at 06:40 PM.

23. If the lunch break of a school starts at 12:30 PM and ends in 35 minutes, what time will lunch end?

Answer: Lunch will end at 01:05 PM.

24. It is 08:35 PM right now. What time will it be after 8 hours and 25 minutes?

Answer: 08:35 PM + 8 hours 25 minutes = 05:00 AM (next day).

Mastering Time Calculations in NCERT Class 5 Maths

The Racing Seconds chapter in NCERT Class 5 Maths enhances your understanding of seconds and minutes through real-life activities and time calculations. Developing these skills is essential for accuracy and speed in exam problem-solving. 

With Vedantu's NCERT Solutions Class 5 Maths Mela Chapter 12, students can systematically practice elapsed time, conversions, and reading clocks in both 12-hour and 24-hour formats. Regular practice builds strong mental math and time management abilities for day-to-day and exam use.

Focus on practicing exercise-based questions and daily time estimation to enhance your confidence. Reviewing these solutions will help you master time word problems and boost your score in the NCERT Class 5 Maths final exams.