out of 3600 employees \(\frac{1}{3}\) are clerical hence clerical employees = \(\frac{1}{3}\) * 3600 = 1200

If \(\frac{1}{3}\) of clerical employees are removed then total number of employees removed = \(\frac{1}{3}\) * \(\frac{1}{3}\) * 3600

Employees removed = \(\frac{1}{9}\) * 3600 = 400

Left over clerical employees = 1200 - 400 = 800

Left over total employees = 3600 - 400 = 3200

Percentage of clerical employees = \(\frac{800}{3200}\) * 100 = 25

Answer is A

total no of employees=3600
clerical employees before reduction=(3600/3)=1200
these employees are to be reduced by 1200/3=400
now total no of employees=3600-400=3200
no of clerical =1200-400=800
percentage of clerical employees=(800/3200)*100=25%
correct answer is A

1/3 of 3600 employees of company X are clerical ==> # Clerical = 1/3 * 3600 = 1200

Removed clerical by 1/3 ==> # removed clerical = 1200 * 1/3 = 400 ==> # Remaining clerical = 1200 - 400 = 800

As those clerical removed, # employees in company X also reduced by 400 ==> # Remaining employees in company X = 3600 - 400 = 3200

Therefore, the percentage of clerical in the company = 800/3200 = 0.25 = 25% ==> Answer is A


P/s: In my opinion, this question is quite vague, as it should mention that the # of employees in company X will be decreased after the removed clerical. If they say remove clerical, those clerical may transfer to other departments or do other jobs and the # employees in company X still remain and the answer should be B in this situation. Hence, I think it should say "fire clerical" instead of "remove clerical"