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