Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number?	Choose the correct choice from the following choices:
A) 240
B) 180
C) 160
D) 140
E) 150
Explanation:   3x + 4x = 420   x = 60 =&gt; 3x = 180   ANSWER IS 180
<result>B</result>
Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number?