Neco Model Questions Vol1 2020 Geography Question 44

In a country the land is classified into four vegetation types based on rainfall (R) and mean annual temperature (T):\n- Rainfall > 2000 mm → rainforest;\n- 1000-2000 mm and T < 25°C → savanna;\n- 500-1000 mm and 20°C ≤ T ≤ 30°C → grassland;\n- Rainfall < 500 mm → desert.\nA map shows that 40\% of the country receives 1800 mm of rain (T = 22°C), 30\% receives 800 mm (T = 27°C), 20\% receives 2500 mm (T = 24°C) and 10\% receives 400 mm (T = 30°C). The government will reforest 5\% of the desert area, converting it to savanna by increasing rainfall to 1200 mm and lowering temperature to 23°C. After this conversion, what percentage of the country's land will be classified as savanna? Give your answer to one decimal place.