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69. A chemist has one solution which is 50% acid and a second which is 25% acid. How much of each should be mixed to make 10 litres of a 40% acid solution?
This question appeared in the OPSC Prelims 2023 examination (GS-II). It is Question 69 out of 174 questions in this paper.
This question was part of the OPSC Prelims 2023 (GS-II). The OPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all OPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.