Heinz produces tomato puree by boiling tomato juice. The tomato puree has only 20% water while the tomato juice has 90% water. How many liters of tomato puree will be obtained from 20 litres of tomato juice?
Choose the most appropriate option
A) 2.8 liters. B) 2.5 liters. C) 8.5 liters. D) 2.6 liters. E) 2.1 liters.
Answer:   Explanation:   In each of the solutions, there is a pure tomato component and some water. So while boiling, water evaporates but tomato not. So we equate tomato part in the both equations.   ⇒⇒ 10%(20) = 80%(x)   ⇒⇒ x = 2.5 liters.   Answer:2.5 liters.
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Heinz produces tomato puree by boiling tomato juice. The tomato puree has only 20% water while the tomato juice has 90% water. How many liters of tomato puree will be obtained from 20 litres of tomato juice?