Question

Two factory plants are making TV panels. Yesterday, Plant A produced 4 times as many panels as Plant B. Five percent of the panels from Plant A and 4% of the panels from Plant B were defective. How many panels did Plant A produce, if the two plants together produced 1440 defective panels?

Answer 1

let call x= amount of panels produced by PlantB
it's means that Plant A produces 4x(4 times)
right?

Answer 2

yes right

Answer 3

5% from Plant A = 0.05*4x
4% from Plant B = 0.04*x
this is amounts of defective panels, right?

Answer 4

i would assume so. yes

Answer 5

We know that it's equal 1440
let's put equation together:
0.05*4x+0.04x=1440
now - solve for x

Answer 6

k hang on!
i can do it:)

Answer 7

i'll wait

Answer 8

or u can go ahead. i wont look lol

Answer 9

ok

Answer 10

0.2x + 0.04x = 1440
0.24x=1440
x=1440/0.24
x=144000/24
x=6000

Answer 11

ok sweet!!! thank you very very much! i was going brain dead on where to even start! thank you

Answer 12

remember, that x is x= amount of panels produced by PlantB
to find production of Plant A - multiply by 4 (4 times as many panels as Plant B)
6000*4=..... :))
Good Luck & Welcome!