question_answer

In a hostel of 50 girls, there are food provisions 40 days. If 30 more girls join the hostel, the food provisions will last for?                        

A) 35 days            

B) 30 days         

C) 25 days            

D) 20 days         

Correct Answer: C

Solution :

Let the provision for food will last x days             80 : 50 :: 40 : x \[x=\frac{50\times 40}{80}\] \[=25\,days\]