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Friday, April 10, 2020

Chapter 1

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.

Answer:

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

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