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