The shrinkage factor of an old map is 24/25 and the RF of original map is 1/2400, then the corrected scale of the map is ________
1
1/2400
2
1/2500
3
1/600
4
1/6000
The shrinkage factor of an old map is 24/25 and the RF of original map is 1/2400, then the corrected scale of the map is ________