In a fort there was sufficient food for 200 soldiers for 31days. After 27 days, 120 soldiers left the fort. for how many extra days will the rest of the food last for the remaining soldiers?  Choose the correct choice from the following options:  A) 5  B) 6  C) 7  D) 8  E) 9
200*31=27*200+x*80   x=10   it means that 6 extra days   ANSWER:6
<result>B</result>
In a fort there was sufficient food for 200 soldiers for 31days. After 27 days, 120 soldiers left the fort. for how many extra days will the rest of the food last for the remaining soldiers?