Averages Mixtures Alligations: Concept, Tricks and Solved Example | UOT MBA

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AVERAGES MIXTURES ALLIGATIONS

Hello Uotians, Averages Mixtures Alligations is a very interesting topic from Quant section of MBA Entrance Exams as well as Bank Exams.

AVERAGES MIXTURES ALLIGATIONS


AVERAGES CONCEPT

Average or Mean is nothing but the sum of all the entities given divided with the number of entities

Example: The average of numbers 5, 9 and 16  is

(5+9+16)/3 = 30/3 = 10

 

MIXTURES AND ALLIGATIONS CONCEPT

When we mix 2 or more entities, a mixture is obtained. Alligation is linking when different mixtures are added and other parameters like cost, profit etc. comes into the picture.

 

Alligation Rule

ALLIGATION RULE


AVERAGES TRICKS

ASSUMPTION

 

MIXTURE AND ALLIGATIONS TRICK

DO NOT PLAY WITH UNITS

THE MEAN PRICE COMMON SENSE

ONLY RATIOS? ASSUME EQUAL VOLUMES


EXAMPLES

AVERAGES

In an apartment complex, the number of people aged 51 years and above is 30 and there are at most 39 people whose ages are below 51 years. The average age of all the people in the apartment complex is 38 years. What is the largest possible average age, in years, of the people whose ages are below 51 years?

Answer: 28

 

MIXTURES AND ALLIGATIONS

Raju and Lalitha originally had marbles in the ratio 4:9. Then Lalitha gave some of her marbles to Raju. As a result, the ratio of the number of marbles with Raju to that with Lalitha became 5:6. What fraction of her original number of marbles was given by Lalitha to Raju?

Answer: (7/33)


AVERAGES QUESTIONS AND ANSWERS FREE PDF

MIXTURES ALLIGATIONS QUESTIONS AND ANSWERS PDF


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