Urmila's school is at a distance of $$5\ km \ and\ 350\ m$$ from her house. She travels $$1\ km\ and \ 70\ m$$ on foot and the rest she travels by bus. How much distance does she travel by bus?
Correct option is A. 4.280
Total distance = Foot + bus
$$5km + 350m = 1km + 70m$$ +bus
$$5.350 - 1.070 = bus$$
$$Bus = 4.28km$$