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प्रश्न
How much money will Dinu pay for 4 kg brass?
उत्तर
The rate of 1 kg of brass according to Dinu’s price list = Rs 180
So, Dinu will pay for 4 kg of brass = Rs 180 × 4 = Rs 720
This can be calculated as follows:
| 100 | 80 | |
| 4 | 100 × 4 | 80 × 4 |
| 400 | 320 |
By adding the digits in last row you will get 400 + 320 = 720 Hence, Dinu will pay Rs 720 for 4 kg of brass.
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संबंधित प्रश्न
What do you think is the easiest lesson in maths?
If a person who runs a tea stall earns Rs 30 a day, how much will he earn in 10 days? And in a month? How did you get the answer? Discuss.
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Look at the rate list to see today's rates. Help Kiran to find out the cost of the junk.
| Rate-List | |
| Kind of Junk | Price of 1 kg |
| 1. Waste Paper... | Rs. 4/- |
| 2. Newspaper... | Rs. 5/- |
| 3. Iron... | Rs. 12/- |
| 4. Brass... | Rs. 170/- |
| 5. Plastic... | Rs. 10/- |
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Kiran has bought some junk from junk collectors.
Look at the rate list to see today's rates. Help Kiran to find out the cost of the junk.
| Rate-List | |
| Kind of Junk | Price of 1 kg |
| 1. Waste Paper... | Rs. 4/- |
| 2. Newspaper... | Rs. 5/- |
| 3. Iron... | Rs. 12/- |
| 4. Brass... | Rs. 170/- |
| 5. Plastic... | Rs. 10/- |
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Kiran has bought some junk from junk collectors.
Look at the rate list to see today's rates. Help Kiran to find out the cost of the junk.
| Rate-List | |
| Kind of Junk | Price of 1 kg |
| 1. Waste Paper... | Rs. 4/- |
| 2. Newspaper... | Rs. 5/- |
| 3. Iron... | Rs. 12/- |
| 4. Brass... | Rs. 170/- |
| 5. Plastic... | Rs. 10/- |
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Now you make a record in her diary.
Find out how much she earned this time.
