Respuesta :

answer: 35%

Step-by-step explanation: 1/4 is 25 so add 25 and 40, you get 65. Subtract 65 by 100 and u get 35. Therefor, 35% is your answer! plz mark brainliest or rate :D

Step-by-step explanation:

Total = 600

Screen 1 = 1/4 × 600 = 150

Screen 2 = 40/100 × 600 = 240

Screen 3 = 600 - (150 + 240) = 600 - 390 = 210