Ajay pays Rs 8.0 per litre of spirit. He adds water and sells the mixture at Rs 9 per litre, thereby making 40 % profit. The proportion of water to spirit received by the customers is Choose the correct choice from the following answers:
A) 45:11
B) 11:45
C) 2:45
D) 45:2
E) None of these
Suppose the quantity of spirit purchased = X lites   Suppose quantity of water mixed = Y litres   Required ratio of the water and the spirit in the mixture = Y:X   C.P. of x litres of spirit = Rs 8.0X   S.P of x litres of spirit = 9(X + Y)   Thus,C.P = S.P x 100/(100 + gain% )   =&gt; 64 = (9X+9Y) x 100/100 + 40   =&gt; 1120X =900X +900Y   =&gt; 220X= 900Y   =&gt; Y/X = 220/900 = 11/45   ANSWER:11:45
<result>B</result>
Ajay pays Rs 8.0 per litre of spirit. He adds water and sells the mixture at Rs 9 per litre, thereby making 40 % profit. The proportion of water to spirit received by the customers is