Question

A hostel had provosions for 75 students for 30 days. After 6 days, 15 more students joined the hostel. Then, the food will last for days.

• A. 20
• B. 25
• C. 10

Answer 1

The correct option is A 20

First 6 days:

75 students - 30 days

After 6 days:

15 more students were added. Total number of students = 90

75 students - 24 days
1 student - x
90 students - $\frac{x}{90}$

$x=24\times 75$

So, for 90 students the food will serve for $\frac{24\times 75}{90}=20days$