A toffee company prepares toffee of two different flavours X and Y. The production of two flavours over a period of 4 years is expressed in the bar graph given below.
What is the difference between the average production of flavour X in 2017 and 2018 and the average production of flavour Y in 2019 and 2020.
1
6000 packs
2
6400 packs
3
7500 packs
4
7000 packs