The bar graph represents the weekly expenditure on three categories of fast food according to income groups in britain while the line graph illustrates the total consumption of these fast foods in the time period of 20 years between 1970-1990.
Overall, it can be seen that hamburger is the favorite fast food between high and average income groups and that its consumption has gotten a sharp rise over the time span of 20 years.
At first, the bar graph shows the expenditure comparison among hamburgers, fish & chips and pizza. Hamburger is the highly consumed food in high and average income groups where it costs 40 and 32 pence per week respectively. Contrary, in low income group, more money is spent on fish and chips around 17% which corresponds to the money spent on them in high income group. Pizza expenditure has a gradual falling trend from high to low income groups which is 20%, 12% and 6% respectively.
On the other hand, the line graph depicts that fish and chips were the highly consumed fast food in 1970, consumption 300 gms but with the passage of time, its consumption showed a gradual descending trend till 1990 when it reached around 200gms. While hamburger and pizza showed increasing trend, in which hamburger showed an abrupt rise and reached at 500 gms till 1990. Pizza consumption took a steep rise and could just reach at 220 gms which is the same as the most lowest level of fish and chips consumption.