A ROADSIDE STAND

If -: stands for xx, xx stands for -,- stands for + and + stands for -: then 48+6-12-:2+10=? (Do chronologically and not according to BODMAS rule)

Statement: A speeding truck has seriously injured many persons sleeping on the roadside early in the morning. Courses of action : I. The local administration should immediately put a complete ban on people sleeping on the roadsides. II. The driver of the speeding truck should be nabbed and tried for the crime he committed.

Standing Crop vs Standing State

P stands for set of Politicians. I stands for set of Indians. S stands for set of Scientists. Which sort of men are represented by (a)?