Averages Mixtures Alligations: Concept, Tricks and Solved Example | UOT MBA
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.
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.
MIXTURE AND ALLIGATIONS TRICK
DO NOT PLAY WITH UNITS
THE MEAN PRICE COMMON SENSE
ONLY RATIOS? ASSUME EQUAL VOLUMES
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?
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?