If two numbers are in the ratio 3:4. If 10 is added to both of the numbers then the ratio becomes 4:5 then find the smallest number?
Select the correct option:
A) 10 B) 20 C) 30 D) 40 E) 50
Explanation:   3:4   3x + 10 : 4x + 10 = 4 : 5   5[3x + 10] = 4[4x + 10]   15x + 50 = 16x + 40   16x - 15x = 50 - 40= 
<gadget id="calculator">50 - 40</gadget>
<output>10</output>
10   Then smallest number is= 3   3x = 30   Answer: Option 30
<result>C</result>
If two numbers are in the ratio 3:4. If 10 is added to both of the numbers then the ratio becomes 4:5 then find the smallest number?