CAT 2018 Alligations and Mixtures Question (Easy)

Question

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

Optima Learn · Accepted Answer

Solution Step 1 Assume variables Let - n number of people below 51 years - S sum of ages of people below 51 years - S sum of ages of people aged 51 years and above Given - Number of people aged 51 years 30 - n 39 - Average age of all 38 years - Total people n 30 - Total sum of ages S S 38 n 30 Step

CAT 2018 Alligations and Mixtures — Previous Year Question

CAT 2018

Quantitative

Alligations and Mixtures

Easy

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