Quantitative Aptitude – Arithmetic – Mixture


Slot – 1 – Quantitative Aptitude – Arithmetic – Mixture – A chemist mixes two liquids 1 and 2

Q. 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?
  1. 70
  2. 80
  3. 75
  4. 85
Answer: 80

Solution: Solution: weight of half litre of the liquid 1 and liquid 2 will be 500 and 400 gm respectively.
So required ratio of liquid 1 an 2 in mixture =(480n-400)/(500 -480) =80/20 = 4:1
So the percentage of liquid 1 in the mixture= 4/(4+1) *100 = 80

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