If a descending gradient of 1 in 25 meets an ascending gradient of 1 in 40, then the length of valley curve required for a headlight sight distance of 100 m will be

If a descending gradient of 1 in 25 meets an ascending gradient of 1 i

1.	If a descending gradient of 1 in 25 meets an ascending gradient of 1 in 40, then the length of valley curve required for a headlight sight distance of 100 m will be
A.	30 m
B.	130 m
C.	310 m
D.	630 m
Answer» C. 310 m

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If a descending gradient of 1 in 25 meets an ascending gradient of 1 in 40, then the length of valley curve required for a headlight sight distance of 100 m will be

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