Math Problem Statement
The following is the age distribution of 1,000 persons working in a large industrial house: Age Group No. of Persons 20-25 30 25-30 160 30-35 210 35-40 180 40-45 145 45-50 105 50-55 70 55-60 60 60-65 40 Due to continuous losses, it is desired to bring down the strength to 30% of the present number according to the following scheme: (i) To retrench the first 15% from the lower group. (ii) To absorb the next 45% in other branches. (iii) To make 10% from the highest age group retire permanently, if necessary. Calculate the age limits of the persons retained and those to be transferred to other departments. Also find the average age of those retained.
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Age Distribution
Weighted Average
Formulas
Percentage calculations
Weighted average formula
Theorems
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Suitable Grade Level
College Level
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