In a National Level Test, 500 students appeared for the examination. Out of these students, 42% got 81-100 percentile, 25% got 61-80 percentile and the remaining students got 41-60 percentile. Find the number of students who got 41-60 percentile.

In a town with 30,000 professionals, teachers make up 11% of the total professionals. If 46% of teachers are male, what is the number of female teachers in the town?

In a town's professional breakdown, doctors represent 18% and clerks represent 8% of the total professionals. If the number of doctors is 3000 greater than the number of clerks, what is the total number of professionals in the town?