Maths · Chapter 16
Mixture and Alligation PYQs
One cross-shaped picture that handles rice, milk and water, alloys, replacement and even averages and speeds.
Composition of a mixture: finding each part 4 PYQs
- A milkman has 20 litres of milk. He mixes it with 5 litres of water. What is the percentage of water in the mixture?SSC Selection Post 2026 · 17 Sep 2026
- In a mixture of milk and water, the ratio of milk to water is 5 : 2. If the total mixture is 35 litres, how much milk does it contain?UP Police Constable 2026 · 08 Jun 2026
- In a mixture of milk and water, the ratio of milk to water is 3 : 1 respectively. If there are 48 litres of mixture in total, how much milk is there…UP Police Constable 2026 · 08 Jun 2026
- In a science experiment, chemicals X, Y, and Z are mixed in the ratio 5:2:3. If the total weight of the mixture is 100 grams, how much of chemical Y…RRB NTPC 2026 · 08 May 2026
Mean value of a mixture (weighted average) 3 PYQs
- A shopkeeper mixes two kinds of tea, one costing ₹75 per kg and the other costing ₹105 per kg, in the ratio 3 : 2. Find the cost price per kg of…SSC Selection Post 2026 · 26 Sep 2026
- A milkman has two types of milk. In the first container the percentage of milk is 70% and in the second container the percentage of milk is 85%. If…SSC Selection Post 2026 · 23 Sep 2026
- There are 25 members in group A, 32 members in group B and 31 members in group C. All the members of these groups went to a restaurant. The average…RRB NTPC 2026 · 27 Mar 2026
The alligation rule: ratio in which to mix 4 PYQs
- Two types of sugar are mixed together: (1) Type A costs ₹25/kg. (2) Type B costs ₹30/kg. Find the ratio in which the two types must be mixed so that…Other exams 2026 · 10 Jan 2026
- A farmer wants to mix two fertilisers. One contains 40% nitrogen and the other contains 25% nitrogen. In what ratio should he mix them to obtain a…Other exams 2026 · 12 Jan 2026
- A perfumer blends two perfumes costing ₹900/L and ₹600/L to make 240 L of blend at ₹750/L. Due to poor packaging, 15 L leaks out. How much of the…SSC Selection Post 2026 · 18 Sep 2026
- A farmer wants to prepare 20 kg of fertiliser mixture containing 42% nitrogen by mixing two types of fertilisers, A and B. Fertiliser A contains 30%…RRB Group D 2026 · 10 Feb 2026
Finding an unknown price or strength from the mean 1 PYQs
Adding or removing one component: percentage form 6 PYQs
- By adding water to 80 litres of a 20% acid solution, the acid concentration is reduced to 10%. What volume of water was added?Other exams 2026 · 12 Jan 2026
- You have 90 ml of a sugar solution that contains 38% sugar. How much pure water must be added so that the final solution becomes 17.1% sugar?SSC Selection Post 2026 · 22 Sep 2026
- A 70 kg mixture of sand and gravel contains 55% gravel. How much gravel must be added to make the mixture contain 65% gravel?SSC Selection Post 2026 · 17 Sep 2026
- A container holds a mixture of salt and water in which 8% of the mixture is salt. Some water is evaporated, but the amount of salt remains the same.…SSC Selection Post 2026 · 24 Sep 2026
- A brine tank has 100 litres of 40% salt solution. Water is added to reduce it to 25%, but then 10 litres are lost due to overflow. What was the…SSC Selection Post 2026 · 21 Sep 2026
- A bottle contains 80 litres of a honey-water mixture, and 25% of the mixture is pure honey. Some more pure honey is added to the bottle so that the…SSC Selection Post 2026 · 16 Sep 2026
Adding one component: ratio form 4 PYQs
- In a mixture of alcohol and water, the ratio of alcohol to water is 5 : 2. If 15 litres of water is added, the ratio becomes 5 : 4. Find the…SSC GD 2026 · 19 May 2026
- In a 56-litre solution of water and milk where the milk to water ratio is 5 : 3, what quantity of milk should be mixed in to obtain a final ratio of…Delhi Police 2026 · 12 Jan 2026
- A mixture contains alcohol and water in ratio 4 : 5. If 10 litres of water is added to 27 litres of the mixture, find the new ratio of alcohol to…UP Police Constable 2026 · 09 Jun 2026
- In a mixture of milk and water, the ratio of milk to water is 7 : 3. If the total mixture is 120 litres, how many litres of water must be added to…UP Police Constable 2026 · 09 Jun 2026