arithmetic - a ladies hostel had provision of food for 150 women for 45 days after 10 days 25 women left the hostel the number of days for which the remaining food will last is - skillgun

After 10 days : 150 women had food for 35 days.
Suppose 125 women had food for x days.
Now, Less women, More days (Indirect Proportion)
125 : 150 :: 35 : x
=> 125 x x = 150 x 35
=> x = 150 x 35 / 125
=> x = 42.