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/-

How much money will Dinu pay for 32 kg iron?

Answer 1

1 kg of iron is sold in Rs 14

Therefore, 32 kg of iron = Rs 14 × 32 = Rs 448.

This can be calculated in a similar manner-

	30	2
10	30 × 10	2 × 10
	300	20
4	30 × 4	2 × 4
	120	8

You can get the desired numbers by adding the numbers in bold

300 + 20 + 120 + 8 = 448

So, Dinu will pay Rs 448 for 32 kg of iron.