Question

In 2004, about $38 out of every $100 spent on advertising was spent on television advertising. The amount spent on radio advertising was about 21% as much as was spent on television advertising. How much of every $100 spent on advertising was spent on radio advertising?

Answer 1

$8

Explanation:

Given: Television advertising= $38 out of every $100 spent on advertising.

Radio advertising= 21% as much as was spent on television ads.

As given there are $38 spent on television ads on every $100 of advertising.

∴ Amount spent on television ads=
`(38)/(100)`

Now, finding amount spent on radio advertising on every $100 spent on advertising.

We know, The amount spent on radio advertising was about 21% as much as was spent on television advertising.

∴ Amount spent on radio advertising=
`(38)/(100) * (21)/(100)`

⇒ Amount spent on radio advertising=
`\$ 0.0798`

To know the amount spent on radio advertising on every $100 spending on advertising.

Amount spent on Radio advertising on every $100 spending=
`0.0798* 100= \$ 7.98 \approx \$ 8`

Hence, $8 spent on radio advertising on every $100 spending.