Class 4 Exam > Class 4 Questions > Hema ran a race in 109 seconds. She ran 12 se...
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Hema ran a race in 109 seconds. She ran 12 seconds faster than Chandni. How long did Chandni take to run the race?
- a)2 minutes 1 second
- b)1 minutes 39 seconds
- c)1 minute 42 seconds
- d)1 minute 37 seconds
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Hema ran a race in 109 seconds. She ran 12 seconds faster than Chandni...
No. of seconds Hema took to run the race = 109 seconds = 12 seconds faster than that of Chandni
∴ The time taken by Chandni to run the race = (109 + 12) seconds = 121 seconds = 2 minutes 1 second (Since 60 seconds = 1 minute.)
∴ The time taken by Chandni to run the race = (109 + 12) seconds = 121 seconds = 2 minutes 1 second (Since 60 seconds = 1 minute.)
This question is part of UPSC exam. View all Class 4 courses
Most Upvoted Answer
Hema ran a race in 109 seconds. She ran 12 seconds faster than Chandni...
Given:
- Hema ran the race in 109 seconds.
- Hema ran 12 seconds faster than Chandni.
To find:
- How long did Chandni take to run the race?
Solution:
Let's assume Chandni took x seconds to run the race.
Step 1: Hema's time
- Hema ran the race in 109 seconds.
Step 2: Chandni's time
- Hema ran 12 seconds faster than Chandni.
- So, Hema's time = Chandni's time + 12 seconds.
- Hema's time = x + 12 seconds.
Step 3: Equating the times
- Hema's time = Chandni's time + 12 seconds.
- x + 12 = 109.
Step 4: Solving the equation
- Subtracting 12 from both sides of the equation, we get:
- x + 12 - 12 = 109 - 12.
- x = 97.
Step 5: Convert the time to minutes and seconds
- Since there are 60 seconds in a minute, we divide 97 by 60 to find the number of minutes.
- 97 ÷ 60 = 1 remainder 37.
- So, Chandni took 1 minute and 37 seconds to run the race.
Answer:
- Chandni took 1 minute and 37 seconds to run the race.
- Hence, the correct answer is option (a) 1 minute 37 seconds.
- Hema ran the race in 109 seconds.
- Hema ran 12 seconds faster than Chandni.
To find:
- How long did Chandni take to run the race?
Solution:
Let's assume Chandni took x seconds to run the race.
Step 1: Hema's time
- Hema ran the race in 109 seconds.
Step 2: Chandni's time
- Hema ran 12 seconds faster than Chandni.
- So, Hema's time = Chandni's time + 12 seconds.
- Hema's time = x + 12 seconds.
Step 3: Equating the times
- Hema's time = Chandni's time + 12 seconds.
- x + 12 = 109.
Step 4: Solving the equation
- Subtracting 12 from both sides of the equation, we get:
- x + 12 - 12 = 109 - 12.
- x = 97.
Step 5: Convert the time to minutes and seconds
- Since there are 60 seconds in a minute, we divide 97 by 60 to find the number of minutes.
- 97 ÷ 60 = 1 remainder 37.
- So, Chandni took 1 minute and 37 seconds to run the race.
Answer:
- Chandni took 1 minute and 37 seconds to run the race.
- Hence, the correct answer is option (a) 1 minute 37 seconds.
Community Answer
Hema ran a race in 109 seconds. She ran 12 seconds faster than Chandni...
Correct answer is a) 2 minutes 1 second.
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Hema ran a race in 109 seconds. She ran 12 seconds faster than Chandni. How long did Chandni take to run the race?a)2 minutes 1 secondb)1 minutes 39 secondsc)1 minute 42 secondsd)1 minute 37 secondsCorrect answer is option 'D'. Can you explain this answer?
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Solutions for Hema ran a race in 109 seconds. She ran 12 seconds faster than Chandni. How long did Chandni take to run the race?a)2 minutes 1 secondb)1 minutes 39 secondsc)1 minute 42 secondsd)1 minute 37 secondsCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 4.
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