हिंदी

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.

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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.

10 rounds of a stadium track = _____ km

विकल्प

  • 4 km

  • 6 km

MCQ
रिक्त स्थान भरें
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उत्तर

10 rounds of a stadium track = 4 km.

Explanation:

10 rounds of a stadium track = 400 metres × 10

= 4000 metres = 4000 ÷ 1000 km

= 4 km.

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Long and Short
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Long and Short - Exercises [पृष्ठ १७]

APPEARS IN

एनसीईआरटी Math - Magic [English] Class 4
अध्याय 2 Long and Short
Exercises | Q 9.1 | पृष्ठ १७

संबंधित प्रश्न

  1. Guess the distance between any two dots. How many centimetres is it? Now measure it with the help of a scale. Did you guess right?
  2. Which two dots do you think are farthest from each other? Check your answer.
  3. Which two dots are nearest to each other? Check your answer.

Try This.

Draw another hair of double the length.


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.

  1. How many rounds of the park must Devi Prasad run to complete 2 km?
  2. 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

If a handkerchief is made out of a single thread, how long would that thread be?


Try to find out:

How high can a kite go? Can it go higher than the Qutab Minar?


In how many steps will Dorji cross the road?


Think - How will you know the number of centimetres if you measure with a rope, shoe-string, thread etc.? 

  My measurement My friend's measurement
Nose ______ centimetres ______ centimetres
Around the wrist ______ centimetres ______ centimetres
Around the head ______ centimetres ______ centimetres
Ear ______ centimetres ______ centimetres
Hand (tip of middle  finger to wrist) ______ centimetres ______ centimetres

Activity 1

  • Find some things that look 1 metre long.
  • Use your metre-rope to find which of these things are more or less than 1 metre.
Name of the thing  More than 1 metre Less than 1 metre
Length of table - -
Width of table  - -
Width of door  - -
Length of door  - -
  - -
  - -
  - -

Which of these will be in centimeters and which will be in meters?

Distance from classroom to school gate 


The animals in the picture had a competition. The animal who had the longest tail won a prize. Now who do you think won the first prize and who won the second? Just guess the length of the longest tail.


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