Question

The cost of 16 bags of washing powder, each weighing 1.5kg is Rs. 672. Find the cost of 18 bags of the same, weighing 2 kg

Answer 1

Mass of 1 bag = 1.5 kg
Mass of 16 bags = 16 × 1.5 kg = 24 kg

Cost of 24 kg powder is ₹672
Cost of 1 kg powder = ₹672 / 24 = ₹28

Now,
Mass of 1 bag = 2 kg
Mass of 18 such bags = 18 × 2 kg = 36 kg

Cost of 36 kg powder = 36 kg × ₹28 per kg = ₹1008

Cost of 18 bags each weighing 2 kg is ₹1008