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

1.	In what ratio must water be mixed with to gain 20% by selling the mixture at cost price?
A.	1 : 3
B.	5 : 1
C.	3 : 2
D.	1 : 5
Answer» E.

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

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