Question

What quantity of water should be added to reduce 16 litres of 25% acidic liquid to 20% acidic liquid?
(1) 5 litres
(2) 4 litres
(3) 12 litres (4) 8 litres
(5) None of these
What quantity of water should be added to reduce 6 litres of 50% acidic liquid to 20% acidic liquid?
(1) 8 litres (2) 9 litres
(3) 12 litres (4) 9.5 litres (5) None of these
note 10 litres of 300% acidio liquid​

Answer 1

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