The following table shows day-wise number of seats occupied of different classes in a train. Numbers in bracket represent the total seats available in a particular class.
| Day | 2nd Class Non-AC (900) |
1st Class Non-AC (500) |
AC III Tier (500) |
AC II Tier (250) |
AC 1st Class (150) |
| Monday | 850 | 460 | 480 | 240 | 145 |
| Tuesday | 840 | 400 | 450 | 230 | 120 |
| Wednesday | 830 | 390 | 480 | 220 | 130 |
| Thursday | 790 | 480 | 490 | 250 | 125 |
| Friday | 840 | 470 | 500 | 210 | 130 |
How many seats remained vacant taking all the days together in non-AC classes?
1
715
2
650
3
600
4
585