Question

a dishonest milkmen buyes milk at rs 6 per litre and adds one third of water to it and sells the mixture at rs 7.2 per litre .the gain is

Answer 1

let milkman buys 300 litres of milk

so cost for purchasing is 300 ×6 = 1800

1/3 rd of 300 litres is 100 litres

so 100 litres water added to 300 litres of milk

total milk becomes 400 liters


selling price is 7.2 rs per litre

so total selling price is 400 × 7.2 = 2880 rs

now profit is = 2880 - 1800

= 1080


when cost 1800 ------- profit 1080

then cost 100 -------- profit ????


profit percentage = 1080 × 100 / 1800

= 60 percent