Q. The age distribution of workers in a factory is as fallows : [table] Age in Years | No. of Workers ; 20-28 36-44 44-52 52-60 | 45 100 42 18 [/table] If 15% of the total strength starting from lowest age group is retrenched and 20% of the total strength from the highest age groups is given premature retirement, then the age limit of workers retained in the factory is
A) 20-36
B) 28-44
C) 28-52
D) 36-52
Explanation
(b)
Total number of workers =300
Retrenched =15% of 300=45
These are all from age group $(20 - 28)$
Prematured retried =20% of 300=60
=18 from age group $52 - 60$
And 42 from age group $(44 - 52)$
$\therefore$ Age limit of workers retained is $28 - 44$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.