Question

You have a list of 140 'hot leads' who clicked on a link in your email. Your click rate is 4%. How many emails did you ORIGINALLY send?

Answer 1

100*140=4X
14000=4X
3500=X

Answer 2

Let

x------> number of emails originally sent

we know that

$4\%= \frac{4}{100}=0.04$

so

$x*0.04=140$

Solve for x

Divide by $0.04$ both sides

$x*0.04/0.04=140/0.04$

$x=140/0.04$

$x=3,500\ emails$

therefore

the answer is

$3,500\ emails$