VARC Question, can anyone please explain me how to approch this type of questions and what they mean to say?

A chemist mixes two liquids 1 and 2. One litre of liquid 1 weighs 1 kg and one litre of liquid 2 weighs 800 gm. If half litre of the mixture weighs 480 gm, then the percentage of liquid 1 in the mixture, in terms of volume, is
Is my approach wrong?? can anyone please explain it because i get it right but the actual step was different than mine, please!
Please solve this doubt
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Pranav Arora replied 2 months ago
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