IKMC 2024 - Grades 11-12 - Set 2 - Self-study Question 5

Question 5

Kaito has manipulated a die. Each of 2, 3, 4 and 5 still has probability 1/6, but rolling a 6 is twice as likely as rolling a 1. What is the probability of rolling a 6?

$1/4$
$1/6$
$7/36$
$2/9$
$5/18$