If 1 kg of wheat costs ₹12, what is the cost of 3 kg of wheat?
₹36
₹15
₹4
₹20
Cost of 3 kg of wheat is nothing but 3 times the cost of 1 kg of wheat. Therefore, we have, Cost of 3 kg of wheat = 3 × ₹12 = ₹36
If 1kg of wheat costs ₹12, what will be the cost of 3kg of wheat?