We are given a question about factory plants making TV panels. The following information holds.
Plant A produces twice as many panels as plant B. This can be expressed mathematically as:
Also, 2% and 3% of the TV panels from Plant A and Plant B are defective, and both plants produced a total of 490 defective panels. This can be expressed mathematically as:
We can clearly see that we have derived two equations. We will substitute the first equation in the second equation to get the number of panels Plant B produced.
Therefore, the number of panels that plant B produced is:
ANSWER: 7000