cases	distance	delivery_time
7	560	16
3	220	11.5
3	340	12.03
4	80	14.88
6	150	13.75
7	330	18.11
2	110	8
7	210	17.83
30	1460	79.24
5	605 	21.5.
16	688	40.33
10	215	21
4	255	13.5
6	462	19.75
9	448	24
10	776	29
6	200	15.35
7	132	19
3	36	9.5
17	770	35.1
10	140	17.9
26	810	52.32
9	450	18.75
8	635	19,8
4	150	10.75