Hello, I have calcuated the number of pizzas sold each day in Brazil. Sharing my approach here, feedback will be appreciated:
Total Population of Brazil: 300 million people
Pizza has been considered to be a luxury because Brazil is a developing country.
Dividing the population into the number of people who can afford eating a pizza and the number of people who cannot afford eating a pizza. Assuming that 45% of the population cannot afford a pizza and 55% of the population can afford a pizza.
The percentage of the population who cannot afford a pizza has been taken high because Brazil has high level of unemployment.
The number has are:
People who can afford a pizza: 55% of 300 million: 165 million people
People who cannot afford a pizza: 45% of 300 million: 135 million people
Further breaking down the population into people who live in cities and people who do not live in cities. This has been done because people in cities tend to have a higher tendency of eating unhealthy food as compared to people who do not live in urban areas.
Dividing the population who can afford to buy a pizza as, 40% who live in cities, and 60% who do not live in cities.
People who can afford to buy a pizza and live in cities: 40% of 165 million people: 66 million people
People who can afford to buy a pizza and do not live in cities: 60% of 165 million people: 99 million people
Further, breaking down the population classification age-wise:
Set A: For, 66 million people (people who live in cities and afford to buy a pizza):
Group 1. Ages groups 0-18, and 55+: 40% of 66 million people: 26.4 million people
Group 2: Age group 18-55: 70% of the population: 39.6 million people
In the age group 18-55, there will be people who work and who do not work, thus:
Group 3: 40% of 26.4 million people do not work: 10.56 million people
Group 4: 60% of 26.4 million people who work: 15.84 million people
Set B: Again for 99 million people (people who do not live in cities and afford to buy a pizza):
Group 1: Age groups 0-18 and 55+: 40% of 99 million people: 39.6 million people
Group 2: Age group 18-55: 60% of 99 million people: 59.4 million people
In the age group 18-55, there will be people who work and who do not work, thus:
Group 3: 40% of 59.4 million people who not work: 23.76 million people
Group 4: 60% of 59.4 million people who work: 35.64 million people
Now, for the number of pizzas to be consumed under Set A:
People under Groups 1, 2, and 4 will eat once in a month, i.e. 81.84 million pizzas in a month.
People under Group 3 will eat twice in a month: 21.12 million pizza in a month,
Total pizza under Set A: 102.96 pizzas, daily: 102.96/30: 3.432 million pizzas
(Assumption: The amount of junk food consumed in non urban areas is almost half of urban areas)
Now, for the number of pizzas to be consumed under Set B:
People under Groups 1, 2, and 4 will eat half a pizza a month: i.e. 67.32 million pizzas a month
People under Group 3 will eat one pizza a month: 23.76 million pizzas a month
Total being: 91.08 million pizzas a month, daily: 91.08/30: 3.036 million pizzas a month
Number of pizzas consumed daily in Brazil: 6.468 million pizzas a day