Question 311482
A country has 221 mobile cellular telephones per 250 inhabitants.
 If the country's population is about 2,800,000 how many mobile cellular
 telephones does the country have?
:
let t = no. of telephones
:
Write a ratio equation
{{{221/250}}} = {{{t/2800000}}}
Cross multiply
250t = 221*2800000
:
250t = 618800000
t = {{{61880000/250}}}
t = 2,475,200 telephones