If ruling gradient is I in 20 and there is also a horizontal curve of radius 76 m, then the compensated grade should be_________________?

(A) 3 % (X)
(B) 4% ()
(C) 5 % (X)
(D) 6% (X)

Answers: If ruling gradient is I in 20 and there is also a horizontal curve of radius 76 m, then the compensated grade should be 4.