A bottle of medication contains 16 ml, which is 20% less than a syringe containing the same medication. How much does the syringe contain?

Question

18.0ml

18.2ml

19.2ml

20.0ml

Answer 1

Let x represent the amount in the syringe. The bottle contains 16 ml. Translating the words " the bottle contains 20% less than the syringe" produces

16 = x - .2x = .8x divide both sides of the equation by .8 to get 20 ml.