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प्रश्न
Have you heard about marathon races in which people have to run about 40 kilometres? People run marathons on roads because the track of a stadium is only 400 metres.
So, if you run a marathon on a stadium track, you will have to complete ______ rounds!
विकल्प
20
10
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उत्तर
So, if you run a marathon on a stadium track, you will have to complete 10 rounds!
Explanation:
The number of rounds to be completed
= (40 x 100) ÷ 400
= 4000 ÷ 400
= 10
You have to complete 10 rounds of stadium track.
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संबंधित प्रश्न
Try This.
Draw a cup 1 cm shorter than this cup.
This is a 100 metre race for girls. Arundhati is nearest the finishing line. She is about 6 metres from it.
Behind her is Rehana. Konkana and Uma are running behind Rehana. Look at the picture. To answer the question below:
How far is Rehana from Arundhati?
Have you heard about marathon races in which people have to run about 40 kilometres? People run marathons on roads because the track of a stadium is only 400 metres.
10 rounds of a stadium track = _____ km
Here are the Indian Records and World Records for some jumps.
| Sports | World Record | Indian Record |
| High Jump (Men) | Javier S. (2m 45 cm) | Chandra Pal (2m 17 cm) |
| Long Jump (Men) | Mike P. (8m 95 cm) | Amrit Pal (8m 8 cm) |
| High Jump (Women) | Stefka K. (2m 9 cm) | Bobby A. (1m 91 cm) |
| Long Jump (Women) | Galina C. (7m 52 cm) | Anju G. (6m 83 cm) |
Find out from the table -
How many centimeters higher should Bobby A. jump to reach 2 meters?
[Remember that 1m = 100 cm
Half metre = ?]
Here are the Indian Records and World Records for some jumps.
| Sports | World Record | Indian Record |
| High Jump (Men) | Javier S. (2m 45 cm) | Chandra Pal (2m 17 cm) |
| Long Jump (Men) | Mike P. (8m 95 cm) | Amrit Pal (8m 8 cm) |
| High Jump (Women) | Stefka K. (2m 9 cm) | Bobby A. (1m 91 cm) |
| Long Jump (Women) | Galina C. (7m 52 cm) | Anju G. (6m 83 cm) |
Find out from the table -
Galina's long jump is nearly ______.
Running Exercise
The doctor has told Devi Prasad to run 2 km every day to stay fit. He took one round of this field. How far did he run?
The field was very far from his home. So he chose a park nearby. The boundary of the park was about 400 metres long.
- How many rounds of the park must Devi Prasad run to complete 2 km?
- One day the weather was very good and a cool breeze was blowing. He felt so good that he kept jogging till he got tired after 8 rounds. That day he ran ____ km and ____ metres!
Guess and Find Out
How long is the thread in a reel?
Guess and Find Out
If a handkerchief is made out of a single thread, how long would that thread be?
Compare your measurement with your friends.
- Who has the biggest head and who has the smallest head?
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- Which is longer? Your ear or your nose?
- Is any of your nails more than 1 centimetre long?
Ant Gibli has to reach the grains. She is looking for the shortest road. Can you tell her which is shortest?
