Nitika types 1,500 words in 5 minutes and Tarika types 750 words in 5 minutes. If the difference between the number of words typed by Nitika and Tarika in 3 minutes is 'k', then find the value of k% of the number of words typed by Gitika in 5 minutes (given Gitika types 500 words in 5 minutes).

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?