Kavita's attendance in her school for the academic session 2018-2019 was 216 days. On computing her attendance, it was observed that her attendance was 90%. The total working days of the school were :

250 194 240 195

240

According to question , 90% of attendance = 216 1% of attendance = \(\frac{216}{90}\) = 2.4 Total attendance / working days  = 2.4 × 100 = 240