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When it comes to Quantitative Aptitude, Arithmetic questions are usually asked. Here we are talking about Mixture and Alligations which is more or less asked in almost every banking exam. In this article we are discussing Mixture & Alligations rules and a PDF on some important practice questions based on that for the upcoming RRB Clerk Prelims 2022. The RRB Clerk 2022 notification is now out and the exam is scheduled to take place on **07th, 13th, 14th, 20th, 21st August 2022.** Along with RRB Clerk Prelims there are few practice questions for SBI Clerk mains as well, however for now aspirants can only focus on the RRB Office Assistant Prelims 2022 and start practicing new types of questions. For those who haven’t taken a free mock test yet can attempt the same to know their strong and weak areas. The SBI Clerk 2022 notification is expected to be released soon, so one must be ready for the same by taking a free mock test. One must also keep preparing for RRB Office Assistant Prelims exam side by side. Our advise to the candidates would be to keep on preparing for the upcoming exams and keep taking as many mock tests as possible and practice more and more.

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As far as Mixture & Alligations are concerned we are sharing with you a free PDF comprising of tricks for how to solve such type of questions and are giving few important questions along with this for RRB Clerk Prelims 2022. So, let’s first study the basics of this concept in Quantitative Aptitude.

**Mixture & Alligations Rules**

The rules of mixture and alligations basically help the candidates to find out proportion between the two commodities given. These are two different terms and need to be understood differently.

**Mixture**

Mixing of two or more groups of different types is known as mixture.

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**Alligations**

It basically deals with the quantity you want to mix in two or more items so that the final quantity can be calculated. Alligations deal with the quantity.

In the case of this topic of Quant the formula needs to be correct. The questions are at times tricky, but remembering and using the correct formula will surely help you find the correct answer. For a better understanding of this concept, mentioned below are the rules.

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Rule 1: If the gradients are mixed in a ratio

Rule 2: Two bowls filled with water and milk. In container A the ratio of water and milk is a:b and in second container B the ration is c:d. If both of these are emptied into the third container, then the ratio of the two will be as follows:

Mixture & Allegation Practice Questions – Download Free PDF

**SBI Clerk Mains Mixture & Alligation Practice Questions**

1. Rohan purchases 160 litres of milk at Rs. 5 per litre, and mixes 80 litres of water (free of cost) in it. He sells some amount of mixture at Rs. 5 per litre in which quantity of water is 30 litres, and again he mixes ‘x’ litres of water in it. If he sells the remaining mixture at Rs. 4 per litre, and profit earned by him is Rs. 330, then find the value of ‘x’.

a. 30

b. 15

c. 20

d. 40

e. 35

**Answer: c)**

**Solution: **

Total cost price of milk = 160 × 5 = Rs. 800

Ratio of milk to water initially = 160:80 = 2:1

So, amount of mixture sold = 30/1 × 3 = 90 litres

Total amount sold = ‘240 + x’ litres

So, 90 × 5 + (150 + x) × 4 – 800 = 330

450 + 600 + 4x – 800 = 330

4x = 80, x = 20

Hence, option c.

**RRB Clerk Prelims Mixture & Alligation Practice Questions**

1. A vessel contains 540 litres mixture of honey, milk and water in the ratio of 3:4:5 respectively. 15 litres of honey and 20 litres of milk is added to this mixture. Find the new ratio of honey, milk and water in the vessel.

a. 7:2:8

b. 2:3:5

c. 6:8:9

d. 4:5:3

e. 7:8:9

**Answer: c)**

**Solution: **

Quantity of honey in vessel initially = [3/ (3 + 4 + 5)] × 540 = 135 litres

Quantity of milk in vessel initially = [4/ (3 + 4 + 5)] × 540 = 180 litres

Quantity of water in vessel initially = [5/ (3 + 4 + 5)] × 540 = 225 litres

Therefore, required ratio = (135 + 15): (180 + 20): 225 = 150: 200: 225 = 6: 8: 9

Hence, option c.

Practice more mixture & allegation questions for SBI Clerk mains and RRB Clerk Prelims by downloading the PDF below.

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Mixture & Allegation Practice Questions – Download Free PDF

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