2037. 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__________________? September 7, 2025 by Admin A. 1 in 257 B. 1 in 357 C. 1 in 457 D. 1 in 512 ✅ The correct answer is option B.