Question

a man buys 1 litre of milk for rupess 20 and mix with 15 percent of water and sells it at rupess 15 per litre find the percentage of loss

Answer 1

if 1L---------20/-
.85L--------15
85/100×20
17 is price for no profit or loss
he sold for 15 loss is 2/-
2/17×100
it is approximately 11-12%