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Mixtures and Allegations MCQs for Competitive Exams

Prepare for Mixtures and Allegations MCQs for Competitive Exams with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

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Topic Notes: Mixtures and Allegations

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

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Master Mixtures and Allegations MCQs for Competitive Exams with our comprehensive, verified question bank. Designed for students and competitive exam aspirants across Pakistan, this study resource provides topic-wise practice questions for CSS, PMS, FPSC, PPSC, SPSC, KPPSC, BPSC, NTS, and university entry tests.

Exam Focus
Aligned with FPSC, PPSC, and CSS syllabus criteria for Mixtures and Allegations.
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Includes frequently repeated questions from past examinations.
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Preparation Guide & Key Focus Areas for Mixtures and Allegations MCQs

When preparing for Mixtures and Allegations MCQs (Mathematics-General Ability), focus on core definitions, historical timelines, relevant provisions, and commonly tested factual points. Review each question below, test your knowledge against the given options, and inspect the detailed explanation to solidify your understanding.

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71
How many kg of wheat costing Rs. 8 per kg must be mixed with 36 kg of wheat costing Rs. 5.40 per kg so that a 20% gain may be obtained by selling the mixture at Rs. 7.20 per kg?
72
In what ratio must water be mixed with milk costing Rs. 24 per liter to obtain a mixture worth Rs. 20 per liter?
73
A sum of Rs. 36.90 is made up of 90 coins that are either 20-paisa or 50-paisa coins. How many are 20-paisa coins?
74
A liquid mixture contains 10% water and 90% alcohol. How much pure alcohol must be added to 50 liters of the mixture to make the water content 5%?
75
A grocer bought 20 kg of rice at Rs. 15 per kg and 30 kg at Rs. 13 per kg. At what price per kg should he sell the mixture to earn a profit of 33.33%?
76
Two vessels contain mixtures of milk and water in the ratios 1:3 and 3:5 respectively. In what ratio must they be mixed to get a mixture in which the ratio of milk and water is 1:2?
77
The ratio of spirit to water in two mixtures is 3:2 and 4:5. How much of the second mixture must be mixed with 3 liters of the first to give a new mixture containing equal parts of spirit and water?
78
30 liters of a mixture of milk and water contains 10% water. How much water must be added to make the water 20% in the new mixture?
79
An alloy contains zinc, copper and tin in the ratio 2:3:1 and another contains copper, tin and lead in the ratio 5:4:3. If equal weights of both alloys are melted together to form a third alloy, then the weight of lead per kg in the new alloy will be:
80
A dishonest milkman buys milk at Rs. 20 per liter and adds 1/4th volume of water to it. What is his profit percentage if he sells the mixture at Rs. 22 per liter?