In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of 3Â° on a gradient of 1 in 250 will have the permissible gradient of

In a B.G. railway track, the specified ruling gradient is 1 in 250. T

1.	In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of 3Â° on a gradient of 1 in 250 will have the permissible gradient of
A.	1 in 257
B.	1 in 357
C.	1 in 457
D.	1 in 512
Answer» C. 1 in 457