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Word Problems: Racing Seconds | Mathematics (Maths Mela) Class 5 - New NCERT PDF Download

Word Problems: Racing Seconds | Mathematics (Maths Mela) Class 5 - New NCERT

Q1: Riya started her morning walk at 6:30 a.m. and walked for 45 minutes. At what time did Riya finish her walk?
Solution:
6:30 a.m. + 45 minutes = 7:15 a.m.
Answer: 7:15 a.m.

Q2: The school assembly starts at 8:15 a.m. and lasts for 20 minutes. At what time does the assembly end?
Solution:
8:15 a.m. + 20 minutes = 8:35 a.m.
Answer: 8:35 a.m.

Q3: A movie starts at 3:45 p.m. and its duration is 2 hours 10 minutes. When will the movie end?
Solution:
3:45 p.m. + 2 hours = 5:45 p.m.
5:45 p.m. + 10 minutes = 5:55 p.m.
Answer: 5:55 p.m.

Q4: Sara started baking a cake at 2:20 p.m. It took 1 hour 35 minutes to bake. At what time did Sara finish baking?
Solution:
2:20 p.m. + 1 hour = 3:20 p.m.
3:20 p.m. + 35 minutes = 3:55 p.m.
Answer: 3:55 p.m.

Q5: A train leaves the station at 9:40 a.m. and reaches its destination after 3 hours 25 minutes. What time does the train reach the destination?
Solution:
9:40 a.m. + 3 hours = 12:40 p.m.
12:40 p.m. + 25 minutes = 1:05 p.m.
Answer: 1:05 p.m.

Q6. The table shows the time taken by 3 children to finish reading a story:

NameTime Taken
Aman1 hour 50 min
Meera2 hours 10 min
Kabir1 hour 30 min

(a) Who took the longest time?
(b) Who took the least time?

Solution:
(a) Meera (2 hours 10 min)
(b) Kabir (1 hour 30 min)

Q7. Raghav starts practising yoga at 06:20 a.m. and finishes at 06:55 a.m.
(a) At what time did he start?
(b) At what time did he finish?
(c) How much time did he spend practising yoga?

Solution:
(a) 06:20 a.m.
(b) 06:55 a.m.
(c) Time spent = 06:55 – 06:20 = 35 minutes

The document Word Problems: Racing Seconds | Mathematics (Maths Mela) Class 5 - New NCERT is a part of the Class 5 Course Mathematics (Maths Mela) Class 5 - New NCERT.
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FAQs on Word Problems: Racing Seconds - Mathematics (Maths Mela) Class 5 - New NCERT

1. What are racing seconds in a time measurement context?
Ans.Racing seconds refer to the precise measurement of time, often used in sports and competitions to determine the speed and performance of athletes. This unit helps in recording exact time taken to complete a race or event, down to fractions of a second.
2. How can I solve word problems involving racing seconds?
Ans.To solve word problems involving racing seconds, first read the problem carefully to understand the scenario. Identify the key information such as distances and times. Use simple mathematical operations like addition, subtraction, multiplication, or division to find the solution, ensuring you keep track of the units involved.
3. Why is it important to measure time in seconds during races?
Ans.Measuring time in seconds during races is crucial as it allows for accurate comparisons of performance. It helps determine the winner, analyze athletes’ improvements, and establish records. In sports where fractions of a second can be decisive, precise timekeeping is essential.
4. What strategies can I use to practice racing seconds problems?
Ans. To practice racing seconds problems, you can gather example problems from textbooks or online resources. Try to create your own problems based on real-world scenarios like track races or swimming events. Additionally, working in study groups can provide different perspectives and solutions to similar problems.
5. How do I convert minutes into seconds for racing scenarios?
Ans.To convert minutes into seconds, multiply the number of minutes by 60 since there are 60 seconds in a minute. For example, if a race takes 2 minutes, the time in seconds would be 2 × 60 = 120 seconds. This conversion is often necessary to work with racing seconds accurately.
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