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प्रश्न
How much money will Dinu pay for 4 kg brass?
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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?
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| Dinu's Rate-List | |
| Kind of Junk | Price of 1 Kg |
| 1. Newspaper... | Rs. 6/- |
| 2. Iron... | Rs. 14/- |
| 3. Brass... | Rs. 180/- |
| 4. Plastic... | Rs. 12/- |
| 5. Water paper... | Rs. 4.50/- |
- Kiran bought 1 kg plastic for Rs 10, but sold 1 kg plastic for Rs 12. How much money does she earn on selling 1 kg plastic?
- So, how much money does she earn for 63 kg?
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