4.2 ์ •๋„์— 1k ์ˆ˜์‹ ๊ธฐ ์ถ”๊ฐ€ํ•ด์„œ ํŒ”๋˜๋ฐ ์ด ์ •๋„ ๊ฐ€๊ฒฉ์ด๋ฉด ์‚ด๋งŒํ•œ๊ฐ€?


์–ด์ฐจํ”ผ ํ• ์ธํ•ด๋ดค์ž ์ตœ๋Œ€ 3์ฒœ์› ์ •๋„ ์•„๋‹Œ๊ฐ€?


์–ด๋А์ •๋„ ๊ฐ€๊ฒฉ์ด ์ ๋‹นํ•˜์ง€?