Find the initial concentration of apple juice in the solution if 9 litres out of 81 litres
Answers
Answer:
As 9 litres out of the given 81 litres consist of apple juice
Concentration of apple juice= Apple juice present in litres×100÷ Total litres present
= 9×100÷ 81= 11.11 litres.
Given : 9 litres of 81 litres of a solution of apple juice and water is replaced by pure water to obtain 56% concentrated juice
https://brainly.in/question/28244685 ( complete Question)
To Find : the initial concentration of apple juice in the solution
Solution:
Apple juice = 9X litre
Water = 81 - 9X litre
9 litres of solution will contain =
(9/81) 9X = X litre of Apple juice
and 9 - X litre of Water
replaced by pure water
Apple juice = 9X - X = 8X litre
Water = 81 - 8X
Total = 81 litre
56% concentrated juice
=> (8X / 81) * 100 = 56
=> X = 7 * 81 /100
=> 9X = 9 * 7 * 81 /100
> 9X = (63 * 81 /100)
% in 81 litre = 63 %
Initial concentration of apple juice in the solution = 63 %
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