(2) ∵ 250 students have provisions for 35 days.
∴ 1 student has provision for 250 x 35 = 8750 days
250 students used the provisions for 5 days.
i. e., 1 student used the provisions for 250 x 5= 1250 days
Now, remaining provisions is sufficient for 1 student for
8750 - 1250 = 7500 days
Now, (250+ 25) students used the remaining provision for 10 days.
i. e., 1 students used the provisions for
275 x 10 = 2750 days
Again, remaining provisions is sufficient for 1 student for
7500 - 2750 = 4750
Therefore, (275 - 25) = 250 students can use the provisions for
= 19 days