Question

5. In a hostel, 50 persons can have food for 30 days. If
20 persons shift to another hostel, for how long will
the food provisions last?​

Answer 1

Answer:

50 people = 30 days

30 people =?

By cross multiplication :

$30 \times 30 \div 50 = 18$

Therefore: food will last for 18 days.