Question

In a certain country, approximately 22 out of 100 people over the age of 12 smoke. How many smokers would you expect in a group of 850 people over the age of 12?

Answer 1

People smoking= 187

Explanation:
Take ratio of 22 people smoking out of 100,

`(22)/(100)`
now take ratio of unknown people smoking to 850 that is,

`(x)/(850)`
Compare them[i.e. take into proportion]

`(22)/(100) = (x)/(850)`

`(22)/(100) . 850 = x`

`x= 187`

Answer 2

I would guess about 187 people out of the 850. I'm not really sure though.

Explanation: