If the difference in elevation of an edge of the pavement 9 m wide and its crown is 15 cm, the camber of the pavement, is

If the difference in elevation of an edge of the pavement 9 m wide and

1.	If the difference in elevation of an edge of the pavement 9 m wide and its crown is 15 cm, the camber of the pavement, is
A.	1 in 60
B.	1 in 45
C.	1 in 30
D.	1 in 15
Answer» D. 1 in 15