How many litres of each of a 8% and an 22% salt solutions should be mixed to obtain 70 litres of a 14% solution?

Options
- 40 litres
- 45 litres
- 36 litres
- 20 litres

CORRECT ANSWER : 40 litres

Discussion Board
40 liters

The total solution is 70 Litre in weight

Consider X liters of 8% salt solution be mixed with (70-X) liters of 22% salt solutions.

X*8 + (70-X)*22 = 70*14

8X + 1540 - 22X = 980

560 = 14*X

X = 40


Kishan Yadav 12-8-2021 12:59 AM

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