Question

It is estimated that there are 828 motor vehicles in the US for every 1,000 people. If the number of motor vehicles in the US is 260 million, then what is its population to the nearest million?

A) 215 million
B) 314 million
C) 315 million
D) 475 million

Answer 1

B) 314 million

Explanation:

Given the following data;

Estimated motor vehicles = 828

Total number of motor vehicles = 260,000,000

Also, for 1,000 people, there are 828 motor vehicles.

Therefore, to find the population;

`Population = \frac {260,000,000}{828}*1,000`

`Population = 314009.662 *1,000`

Population = 314,009,662

Therefore, the population to the nearest millions is 314,000,000 people.

Method II

Motor vehicles = population

828 vehicles = 1000 people

260,000,000 vehicles = X people

Cross multiplying, we have;

828X = 260,000,000,000

`X = \frac {260,000,000,000}{828}`

X = 314,009,662

Therefore, the population to the nearest millions is 314,000,000 people.