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Question
Mental Math: Bhajan Buys Bricks
Bhajan went to buy bricks. The price was given for one thousand bricks. The prices were also different for different types of bricks.
Old bricks
- Rs 1200 for one thousand bricks
New bricks from Intapur
- Rs 1800 for one thousand bricks
New bricks from Brickabad
- Rs 2000 for one thousand bricks
Bhajan decided to buy the new bricks from Brickabad. He bought three thousand bricks. How much did he pay? _______________
• Guess what he will pay if he buys 500 old bricks.
Bhajan went to buy bricks. The price was given for one thousand bricks. The prices were also different for different types of bricks.
| Old bricks | - Rs 1200 for one thousand bricks |
| New bricks from Intapur | - Rs 1800 for one thousand bricks |
| New bricks from Brickabad | - Rs 2000 for one thousand bricks |
• Guess what he will pay if he buys 500 old bricks.
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Solution
Bhajan bought new bricks from Brickabad.
Cost of one new brick from Brickabad = Rs 2000 1000 = Rs 2
Cost of 3000 new bricks bought from Brickabad = Rs 2 3000 = Rs 6000
• Bhajan bought 500 old bricks and the cost of 1000 old bricks = Rs 1200
We have to find the cost of 500 old bricks, which is half of 1000 bricks.
Cost of 500 old bricks = Rs 1200 2 = Rs 600
Thus, the cost of 500 old bricks = Rs 600
Cost of one new brick from Brickabad = Rs 2000 1000 = Rs 2
Cost of 3000 new bricks bought from Brickabad = Rs 2 3000 = Rs 6000
• Bhajan bought 500 old bricks and the cost of 1000 old bricks = Rs 1200
We have to find the cost of 500 old bricks, which is half of 1000 bricks.
Cost of 500 old bricks = Rs 1200 2 = Rs 600
Thus, the cost of 500 old bricks = Rs 600
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