Question

Madhu buy 5 kg of potatoes at the market if the cost of 2kg is rs 36how much will Madhu pay

Answer 1

2kg=36$
1kg=18$
5kg=18$×5
5kg=90$

Answer 2

Price of 2 kg potatoes =rs. 36

So, price of 1 kg potatoes =  36/2 = rs. 18

Now price of 5 kg potatoes = Rs. 18×5

So, price of 5 kg potatoes = Rs. 90