You have 10 liters of a juice to blend that is 60% juice. How many liters of pure juice (100%) need to be added in order to make a blend that is 80%

10 liters

Step-by-step explanation:

#The amount of pure juice is obtained by multiplying its proportion by the total:

#To make a blend of 80% means that the proportion of juice in the new blend is 80%.

-Juice is 4x the amount of water added.

Water=10-6=4 liters.

=>Amount of pure juice in the blend=4*4=16 liters

#Additional juice=Proportion- 6

                           =16-6

                           =10 liters

Hence, 10 liters of juice have to be added to achieve a 80% blend.

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step-by-step explanation: