Question

16
16
14. The key for a door is in the bunch of 10 keys. A man attempts to open the door by trying keys at
random discarding the wrong key. the probability that the door is opened in the 5th trial is
(1) 0.1
2) 0.2
3) 0.5
4) 0.6

Answer 1

$\huge \bold \color{orange}A \color{red}n \color{green}s \color{blue}w \color {purple}e\color {pink}r$

The probability that the door is opened in the 5th trail is 0.6 ,so your answer is 4) 0.6

Thank you. Hope it helps