Subject: algebra
Name: Sherine
Who are you: Student (All)

One quarter of the workers at the factory are clerical, one fifth are technical, half are are administrative,and the remaining 25 are managerial.

How many total worker are in the factory?

250?
366?
400?
500?
2500?

 

Hi Sherine,

Let x be the number of workers in the factory. What you know is

Clerical  1/4 x
Technical 1/5 x
Administrative 1/2 x
Managerial 25
Total x

Thus

 1/4 x + 1/5 x + 1/2 x + 25 = x

Solve for x.

Penny