Question

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/-

1. 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?
2. So, how much money does she earn for 63 kg?

Answer 1

(1) Kiran bought 1 kg plastic for Rs 10 and sold 1 kg plastic for Rs 12.

So, she earn Rs 12 - Rs 10 = Rs 2.

(2) For 1 kg plastic she earns Rs 2.

Therefore, for 63 kg plastic she earns = Rs 2 × 63 = Rs 126

It can be calculated as follows:

	60	3
2	60 × 2	3 × 2
	120	6

You will get 126 by adding the digits in the last row.