SAT math question help

Test Preparation SAT Preparation
1

<p>If a + 2b is equal to 125% of 4b, what is the value of a/b.</p>

<p>Answer is 3</p>

<p>Can anyone explain? I couldn't find an explanation anywhere here.</p>

2

<p>a+2b = 125%4b
a+2b = 125/100x4b
a+2b = 5b
a=3b =>a/b = 3:1</p>