In a certain exam, A got 33.33% of the total marks of 300. B's marks are one-fourth more than A's marks. C got 15 marks less than B. D got 20 marks more than the average marks of A, B, and C. How many among A, B, C, and D got more than 40% of the t otal marks?

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?