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प्रश्न
Guess and Find Out
How long is the thread in a reel?
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उत्तर
The length of the thread depends on the thickness of the reel.
It may be 50 metres, 100 metres, 200 metres or 500 metres or more.
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संबंधित प्रश्न
Akbar was a famous king. He had a smart minister called Birbal. Once Akbar gave him a difficult question. He drew a line on the floor.
Look at the picture and explain how Birbal made Akbar's line shorter.
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?
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 ahead is Rehana from Konkana and Uma?
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 -
If Mike P. could jump ______ centimeters longer, his jump would be full 9 meters.
The Qutab Minar is 72 meters high.
- About how many meters high is your classroom?
- Guess how many rooms, one on top of the other, will be equal to the Qutab Minar.
- Explain how you made a guess.
Find out how far your friends live from school and fill the table. Write in meters or kilometers.
| Friend's name | Distance of home from school |
- Who among you lives nearest to the school?
- Who lives farthest from the school?
- How many children live less than 1 kilometer away from your school?
- Is there anyone who lives more than 5 km away from the school? How do they come to school?
Look for things that are less than 1 cm long.
Guess the length of different parts of your body and check if your guess is correct. You can use a scale, string, measuring tape etc.
You must have seen shopkeepers measuring cloth with a metre rod.
- Take a metre rod and a rope.
- Make a knot at one end of the rope.
- Keep the metre rod with the rope.
- Mark 1 metre on the rope and make a knot there.
- Now the length between the two knots is 1 metre. This is your metre-rope.
If you don't get a metre rod use a measuring-tape and mark 100 centimetres on the rope. 100 centimetres are equal to a metre, so you get the metre-rope.
Now make a chart of the heights of your friends. To measure the centimetres, you can use your small scale.
| Name | Taller/Shorter/Equal to 1 metre | How many centimetres more or less than a metre |
| Shambhu | Taller | 4 centimetres |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
| ______ | ______ | ______ |
