Question

1.The population of the world is approximately 6200 million people. It is increasing by approximately 93 million people each year.Use this information to calculate the percentage increase in the population over a year.
2. Mike says, ‘An increase of 93 million people each year is more than 170 people each minute’.Show that he is correct.

Answer 1

The fraction can simplify down to $\frac{93}{6200}$ convert it to a fraction and the yearly increase is 1.5%

2. Well on average there are 365 days in a year. Dividing 93 million by 365 will get your increase per day. 
There are 24 hours in a day, so that figure is further divided by 24.
There are also 60 minutes in an hour therefore furthermore divided by 60.
= 176 therefore true