If one root of x 2 - 6kx + 5 = 0 is 5, find the value of k.

Given, one root of x² - 6kx + 5 = 0 is 5.
∴ x = 5 satisfies x² - 6kx + 5 = 0
⇒ 5² - 30k + 5 = 0
⇒ 25 - 30k + 5 = 0
⇒ 30 - 30k = 0
⇒ 30k = 30
∴ k = 1