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प्रश्न
How much does a postcard cost?
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उत्तर
The cost of a postcard is Re 1.
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संबंधित प्रश्न
Father gave them some idea of the weight of each thing.
| Thing loaded | Weight |
| A sack of wheat | 100 kg |
| A sack of rice | 35 kg |
| Water tank | 50 kg |
| Almirah | 70 kg |
| A table | 10 kg |
| A chair | 5 kg |
| A mattress | 20 kg |
| Bamboo ladder | 10 kg |
| Pots and pans | 10 kg |
Find out the total weight they had loaded on the cart.
Which things should be removed so that the weight of the load is not more than 700 kg?
Now, you also make your own balance. Write down how you made it. Also draw a picture of your balance in the box below.
Make groups of three things. For example - eraser, ball and paper. Use the balance to arrange them in order of weight-the lightest, the one with in-between weight, the heaviest.
Complete the table with at least five examples.
| Lightest | In-between weight | Heaviest |
| Paper | Eraser | Ball |
If you put the soap and the weight you just made together in a pan, how many grams will both these weigh?
Is the weight on any of the pans equal to 1 kilogram? Mark it.
How many grams are there in 1 kg?
Have you ever been to a post office?
Rahul needs stamps of Rupees 25 for his parcel. He went to the post office. Only stamps of Rs 1, Rs 2, Rs 5 and Rs 10 were there at that time. Using those stamps in how many different ways can he make Rs 25?
Can you show five different ways? What is the heaviest parcel he can send using stamps of Rs 25?
There are 3 marbles of the same size but one marble is slightly heavier or lighter than the other two. Can you find which is that marble and if it is heavier or lighter? You can use a balance only two times.
