Ajay pays Rs 6.4 per litre of spirit, He adds water and sells the mixture at Rs 8 per Iitre, thereby making 37.5% profit. Find the proportion of the water to that of the spirit received by the customers.
Choose the correct choice from the following answers:
A) 1:15 B) 1:10 C) 1:20 D) 1:12 E) 1:13
Suppose the quantity of spirit purchased= X litres   Suppose quantity of water mixed = Y litres   Required ratio of the water and the spirit in the mixture = Y : X   C.P of X lts of spirit = Rs 6.4X   S.P of X lts of milk = Rs 8(X + Y)   profit % = 37.5   Thus, C.P = S.P x 100/(100 + gain% )   =&gt; 64 =( 8X + 8Y)/(100 + 37.5) x 100   880 X= 800X +800Y   =&gt; 80X = 800Y =&gt; X = 10Y   =&gt; X/10 = Y/1   Required ratio = 1:10   ANSWER:1:10
<result>B</result>
Ajay pays Rs 6.4 per litre of spirit, He adds water and sells the mixture at Rs 8 per Iitre, thereby making 37.5% profit. Find the proportion of the water to that of the spirit received by the customers.