to factory planet are making TV panels yesterday plant A pro

to factory planet are making TV panels yesterday plant A produced three times as many panels as Planet B two percent of panels from plant A and 4% the panels from plant B were defective how many panels did plant B produces if the two planets together produces 700 defective panels

Solution

Let the number of panels produced yesterday by plant B be x. Then the number of panels produced yesterday by plant A is 3x. Since 2 % of panels from plant A and 4% the panels from plant B were defective, the number of defective panels produced yesterday by plant A and plant B are 3x*2/100= 6x/100 = 0.06x and x*4/100 = 0.04x respectively. Then, the total number of defective panels produced by the two plants together, yesterday, is 0.06x+ 0.04x = 0.1x. Therefore, 0.1x = 700 so that x = 700*10 = 7000. Further, since the number of panels produced yesterday by plant B is x, the number of total panels produced by plant B, yesterday, is 7000.