Question

What will be the cost of 3.20 kg of an item, if 3 kg of it costs Rs. 360?

Answer 1

Cost of 3 kg of an item = Rs. 360

Cost of 1 kg of the item = Rs. `360/3`

∴ Cost of 3.20 kg of the item = Rs. `(360 xx 3.20)/3`

= Rs. 384

∴ Cost of 3.20 kg of the item = Rs. 384