SOLUTION: Sixteen liters of water fill my fish tank to 2/5 of its capacity. How many liters does it take to fill the tank?

Question 430731: Sixteen liters of water fill my fish tank to 2/5 of its capacity. How many liters does it take to fill the tank?
Found 2 solutions by rfer, Tanzina ahamed:
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
16/0.4=40 L
Answer by Tanzina ahamed(5) (Show Source): You can put this solution on YOUR website!
let the capacity of the tank is x L
Then to fill 2x/5 of the capacity we need 16 L of water
to fill x capacity we need 16*5/2=40 L of water
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