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Two solutions of alcohol A and B were mixed to obtain 20 litres of new solution C. Before they were mixed, the first solution A contained 1.6 litres of alcohol while the second solution B contained 1.2 litres of alcohol. Before mixing if the percentage of alcohol in the first solution A was twice that in the second B, what was the volume of the first solution A before mixing?
  • a)
    6 litres
  • b)
    6.4 litres
  • c)
    7.2 litres
  • d)
    8 litreS
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Two solutions of alcohol A and B were mixed to obtain 20 litres of ne...
Let the volume of the first A in the mixture be "x′′ "Itres, the volume of the second B in the mixture must be (20 − x)
% of alcohalin A=(1.6 / x) × 100
% of alcohalin B=(1.2 / 20 − x) × 100
(1.6 / x) × 100 = 2 × (1.2 / 20 − x) ×1 00
16 − 0.8x = 1.2x
x = 8 litres
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Two solutions of alcohol A and B were mixed to obtain 20 litres of new solution C. Before they were mixed, the first solution A contained 1.6 litres of alcohol while the second solution B contained 1.2 litres of alcohol. Before mixing if the percentage of alcohol in the first solution A was twice that in the second B, what was the volume of the first solution A before mixing?a)6 litresb)6.4 litresc)7.2 litresd)8 litreSCorrect answer is option 'D'. Can you explain this answer?
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Two solutions of alcohol A and B were mixed to obtain 20 litres of new solution C. Before they were mixed, the first solution A contained 1.6 litres of alcohol while the second solution B contained 1.2 litres of alcohol. Before mixing if the percentage of alcohol in the first solution A was twice that in the second B, what was the volume of the first solution A before mixing?a)6 litresb)6.4 litresc)7.2 litresd)8 litreSCorrect answer is option 'D'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Two solutions of alcohol A and B were mixed to obtain 20 litres of new solution C. Before they were mixed, the first solution A contained 1.6 litres of alcohol while the second solution B contained 1.2 litres of alcohol. Before mixing if the percentage of alcohol in the first solution A was twice that in the second B, what was the volume of the first solution A before mixing?a)6 litresb)6.4 litresc)7.2 litresd)8 litreSCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two solutions of alcohol A and B were mixed to obtain 20 litres of new solution C. Before they were mixed, the first solution A contained 1.6 litres of alcohol while the second solution B contained 1.2 litres of alcohol. Before mixing if the percentage of alcohol in the first solution A was twice that in the second B, what was the volume of the first solution A before mixing?a)6 litresb)6.4 litresc)7.2 litresd)8 litreSCorrect answer is option 'D'. Can you explain this answer?.
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