A mixture of a certain quantity of milk with 16 litres of water is worth 90 paise per litre. If pure milk is worth Rs 1.80 per litre and water costs nothing, how much milk is there in the mixture?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 16 litres
Water costs nothing, so the whole worth of the mixture comes from the milk in it. The mixture is worth 90 paise, that is Rs 0.90, per litre, which is half the price of pure milk.
Rs 0.90 is \(\frac{1}{2}\) of Rs 1.80, so milk is half of the mixture
The other half is water, which is 16 litres
Milk \(=16\) litres
The mixture contains 16 litres of milk.