113F025


  • a (40+50+50+60)/4= 50dB
  • b (40+50+60+70)/4= 55dB
  • c (50+60+60+70)/4= 60dB
  • d (50+60+70+80)/4= 65dB
  • e (50+50+60+70)/4= 57.5dB

<showsecretimage>./t_image/113/113F002.jpg</showsecretimage>


[正答]


※国試ナビ4※ 113F024]←[国試_113]→[113F026