A man pays Rs. 6.40 per litre of milk. He adds water and sells the mixture at Rs. 8 per litre, thereby making 37.5% profit. The proportion of water to milk received by the customers is

A) 1 : 10

B) 10 : 1

C) 9 : 11

D) 11 : 9

View Answer
Option – A.

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