1 1 vote A milkman has 50 litres of milk. Find quantity of water to be added in it so that he gets 20% profit by selling at its cost price? Quantitative Aptitude ratio-proportion cost-price-selling-price + – Pooja Palod 1.8k points 1.9k views answer comment Share Follow Print 0 reply Please log in or register to add a comment.
0 0 votes Let $x$ be the cost price per litre. $1.2 \times 50 \times x = (50 + y) \times x \\ \implies y = 10.$ Arjun answered Dec 11, 2015 Arjun 8.1k points comment Share Follow 0 reply Please log in or register to add a comment.