Question

Two factory plants are making TV panels. Yesterday, Plant A produced 9000 panels. Ten percent of the panels from Plant A and 3% of the panels from Plant B were defective. How many panels did Plant B produce, if the overall percentage of defective panels from the two plants was 6%?

Answer 1

Panels produced by Plant B = 12000

Explanation:

Let the number of panels produced by plant B be 'x'

Now, according to the given information;

⇒
`9000((10)/(100) ) + x((3)/(100) ) = (9000 + x)((6)/(100) )`

⇒
`90000 + 3x = 54000 + 6x`

⇒ x = 12000