Comprehension Passage
Direction: Study the following line graph carefully to answer the questions.
Amount (in thousand tones) of pesticides manufactured and sold by a factory over the years.
What is the ratio of the amount of pesticides not sold by the factory in the year 2020 to that not sold in the year 2018?
1
5 : 3
2
3 : 5
3
1 : 2
4
1 : 1
5
2 : 1