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/-

Kiran buys 1 kg iron for Rs 12 but sells it for Rs 14. How much does she earn when she sells 32 kg iron?

Answer 1

Kiran earns by selling 1 kg of iron = Rs 14 - Rs 12 = Rs 2

So, she will earn by selling 32 kg of iron = Rs 2 × 32 = Rs 64

This can be calculated as follows also.

	30	2
2	30 × 2	2 × 2
	60	4

You will get the desired result by adding the numbers in the last row.

Which will be equal to 60 + 4 = 64

Hence, Kiran earns Rs 64 by selling 32 kg of iron.