Question : The given graph shows the number (in hundreds) of trees axed in four cities during the period 2016-2020.
Find the year in which the least number of trees are axed.
Option 1: 2016
Option 2: 2020
Option 3: 2019
Option 4: 2017
Correct Answer: 2019
Solution :
In 2016, the number of trees axed = 18 + 20 + 18 + 25 = 81
In 2020, the number of trees axed = 22.5 + 21 + 20 + 17.5 = 81
In 2019, the number of trees axed = 24.4 + 19.5 + 19 + 16 = 78.9
In 2017, the number of trees axed = 25 + 23 + 18.5 + 18 = 84.5
$\therefore$ The lowest number of trees axed was 78.9 in 2019.
Hence, the correct answer is 2019.
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