Answer:
24 days
Explanation:
For 120 men there is provision for 30 days
Total provision = 120x30 = 3600 units
120 men in 5 days will take = 120x5 = 600 units of provision
Remaining provision = 3600–600 = 3000 units
5 more men joined and now there are total 125 men
1 day provision requirement for 125 men = 125 units
Days for which they can sustain on remaining provision = 3000/125 = 24 days
Hope this helps
Good Luck