Question : Study the bar graph and answer the question.
The total number of trees planted in state B in 2015 and 2017 was what percentage less than the total number of trees planted in state A in 2014, 2016, and 2017? (Your answer should be correct to one decimal place.)
Option 1: 19.8%
Option 2: 21.4%
Option 3: 20.8%
Option 4: 20.1%
Correct Answer: 20.8%
Solution :
The total number of trees planted in state B in 2015 and 2017 = 118 + 72 = 190
The total number of trees planted in state A in 2014, 2016, and 2017 = 70 + 78 + 92 = 240
The required percentage $=\frac{240–190}{240}\times 100=\frac{50}{240}\times 100=20.8$%
Hence, the correct answer is 20.8%.
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