एक गाँव की जनसंख्या में प्रति वर्ष 10% की दर से निरंतर वृद्धि हो रही है। यदि इसकी वर्तमान जनसंख्या 54,450 है, तो दो वर्ष पहले यह कितनी थी?

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?