Two factory plants are making TV panels. Yesterday, Plant A produced

Question

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

A 9000 panels , 900 defective

B x panels, .03 x defective

panels = 9000 + x
defective panels = 900 + .03 x

.06 = (900+.03x)/(9000+x)