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.

Answer 1

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 $\times$ 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