Mixture and Alligation Quiz
Practice quiz on Mixture and Alligation (Elementary Mathematics). 10 exam-style questions with explanations.
About This Quiz
Mixture and Alligation Quiz — Questions with Solutions
All 10 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.In what ratio must rice at Rs 20/kg be mixed with rice at Rs 30/kg to get a mixture worth Rs 24/kg?
- A.4 : 1
- B.3 : 2
- C.1 : 1
- D.2 : 3
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Answer: B. 3 : 2
(30-24):(24-20) = 6:4 = 3:2.
Q2.A 40 litre mixture has milk and water in the ratio 3 : 1. The amount of water is
- A.15 litres
- B.30 litres
- C.8 litres
- D.10 litres
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Answer: D. 10 litres
1/4 of 40.
Q3.How much water must be added to 10 litres of pure milk to make it 80% milk?
- A.5 litres
- B.2.5 litres
- C.2 litres
- D.1 litre
Show answer
Answer: B. 2.5 litres
10/(10+x) = 0.8, x = 2.5.
Q4.The alligation rule is used to find
- A.Ratio in which two ingredients are mixed
- B.Interest
- C.Speed
- D.Area
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Answer: A. Ratio in which two ingredients are mixed
Mixture ratios.
Q5.Two vessels contain milk and water in ratios 2 : 3 and 3 : 2. Equal quantities are mixed. The ratio of milk to water is
- A.1 : 2
- B.2 : 3
- C.3 : 2
- D.1 : 1
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Answer: D. 1 : 1
Milk 2/5+3/5 = 1; water 1.
Q6.A mixture of 20 litres of milk and water has 25% water. How many litres of water to add to make water 40%?
- A.10 litres
- B.5 litres
- C.4 litres
- D.2 litres
Show answer
Answer: B. 5 litres
Water 5; (5+x)/(20+x) = 0.4, x = 5.
Q7.In what ratio must tea at Rs 100/kg be mixed with tea at Rs 150/kg so the mixture sells at Rs 120/kg?
- A.3 : 2
- B.5 : 3
- C.2 : 3
- D.1 : 2
Show answer
Answer: A. 3 : 2
(150-120):(120-100) = 30:20.
Q8.The cost of 1 kg of A is Rs 40 and of B is Rs 60. To get a mixture worth Rs 50, A and B must be mixed in the ratio
- A.1 : 2
- B.3 : 2
- C.1 : 1
- D.2 : 1
Show answer
Answer: C. 1 : 1
Equal parts.
Q9.A solution of 10 litres has 20% alcohol. Alcohol in the solution is
- A.1 litre
- B.5 litres
- C.2 litres
- D.3 litres
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Answer: C. 2 litres
0.2 x 10.
Q10.Mean price of a mixture lies
- A.Between the prices of the two ingredients
- B.Above both
- C.Below both
- D.Equal to the larger
Show answer
Answer: A. Between the prices of the two ingredients
Weighted average.
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Can I attempt Mixture and Alligation Quiz multiple times?
Yes. You can attempt this quiz as many times as you like. Each attempt is recorded separately so you can track improvement in score, accuracy and time-management.
Which government exams does this quiz prepare me for?
Mixture & Alligation questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.