पहले वर्ष में एक जनसंख्या में 12% की गिरावट आती है। दूसरे वर्ष में इसमें कितने प्रतिशत की वृद्धि होनी चाहिए ताकि दूसरे वर्ष के अंत में जनसंख्या मूल जनसंख्या के बिल्कुल समान हो जाए?

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?