Question

The state university reported 1183 cases of flu in their student body for the month of January. If this was a 350% increase above the number of flu cases in the month of December, how many students had flu in December?

Answer 1

Let us assume the number of students having flu in December = x
Number of students having flu in the month of January = 1183
Percentage increase in the number of people having flu from the month of December to the month of January = 350%
Then we can write the equation as
350x/100 = 1183
350x = 1183 * 100
350x = 118300
x = 118300/350
  = 11830/35
  = 338
So the number of students that were affected by flu in the month of December was 338. This is the easiest way to get to the required answer.