Question

A dairy man pays rs. 6.4 per litre of milk. He adds water and sells the mixture at rs. 8 per litre, thereby making 37.5% profit. Find the proportion of the water to that of the milk received by the customers.

Answer 1

Firstly calculate mean price as we have profit... formulae is 100/profit +100*Selling price, we get 64/11

Then use rule of allegation.