If 30kg of sugar costs Rs. 1200, find the cost of 35kg sugar?

Rs. 1400

Rs. 1350

Rs. 1375

None of these

We use the unitary method:

Cost of 30 kg sugar = Rs. 1200

Cost of 1 kg sugar = 1200 ÷ 30 = Rs. 40

Cost of 35 kg sugar = 40 × 35 = Rs. 1400