If PN is perpendicular to QR, find the value of tan x.

A.
(frac{5}{9}) 
B.
(frac{3}{5}) 
C.
(frac{3}{4}) 
D.
(frac{4}{3}) 
E.
(frac{5}{3})
Correct Answer: Option B
Explanation
By Pythagoras ON = 4
NR = 5
Tan x = (frac{3}{5})
By Pythagoras ON = 4
NR = 5
Tan x = (frac{3}{5})