If two numbers are in the ratio 2:3. If 10 is added to both of the numbers then the ratio becomes 5:7 then find the largest number?  Options.
A) 30 B) 34 C) 38 D) 40 E) 42
2:3   2x + 10 : 3x + 10 = 5 : 7   7[2x + 10] = 5[3x + 10]   14x + 70 = 15x + 50   15x - 14x = 70 - 50= 
<gadget id="calculator">70 - 50</gadget>
<output>20</output>
20   Then the first number is= 2   2x = 40   40
<result>D</result>
If two numbers are in the ratio 2:3. If 10 is added to both of the numbers then the ratio becomes 5:7 then find the largest number?