The regular selling price for a bottle of liquid soap was 15 TL for 600ml . To account for cost changes , the manufacturer decided to change the price to 12 TL, but also reduce the bottle size to 400 ml . What was the percent change in the price per milliliter? 

a). %10 

b). %50 

c). %30 

d). %20 

e). %40

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15tl600ml 1ml156... View the full answer