In what ratio must water be mixed with milk to gain 20% by selling the mixture at cost price?

In what ratio must water be mixed with milk to gain 20% by selling the

1.	In what ratio must water be mixed with milk to gain 20% by selling the mixture at cost price?
A.	1 : 5
B.	2 : 5
C.	5 : 2
D.	5 : 1
Answer» B. 2 : 5

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In what ratio must water be mixed with milk to gain 20% by selling the mixture at cost price?

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