If the liquid soap of a 16 Rs/ litres is diluted and sold at 17 Rs./litres, in what proportion water should be mixed to gain 25% ?

 If the liquid soap of a 16 Rs/ litres is diluted and sold at 17 Rs./litres, in what proportion water should be mixed to gain 25% ?

A). 3 : 1

B). 5 : 1

C). 7 : 1

D). 9 : 1

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