If two positive numbers are in the ratio 1/7 : 1/5, then by what percent is the second number more than the first?  Choose the correct option
A) 70%  B) 90%  C) 60%  D) 40%  E) 65%
Given ratio = 1/7 : 1/5 = 5 : 7   Let first number be 5x and the second number be 7x.   The second number is more than first number by 2x.   Required percentage = 2x/5x * 100 = 40%.   Answer:40%2 /5  * 100= 
<gadget id="calculator">2 /5  * 100</gadget>
<output>40</output>
40%.   Answer:40%
<result>D</result>
If two positive numbers are in the ratio 1/7 : 1/5, then by what percent is the second number more than the first?