In a hostel there were 100 students. To accommodate 25 more students the average is decreased by some rupees. But total expenditure increased by Rs.500. If the total expenditure of the hostel now 8500, find decrease of average budget?	Options.
A) 20  B) 15  C) 12  D) 18  E) 24
Let average is x   100x + 500=8500   x = 80   let decrease = y   125(80– y)= 8500   y = 12   Answer:12
<result>C</result>
In a hostel there were 100 students. To accommodate 25 more students the average is decreased by some rupees. But total expenditure increased by Rs.500. If the total expenditure of the hostel now 8500, find decrease of average budget?