Two numbers are less than a third number by 30% and 37%. How much percent is the second number is less than the first? Choose the correct choice.
A) 10%  B) 15%  C) 20%  D) 25%  E) 30%
Let the third number be x   first number = 70% of x = 7x/10; second number = 63% of x = 63x/100;   Difference = 7x/10 - 63x/100 = 7x/100; Required percentage = 7x/100 * 10/7x * 100 = 10%   10%nswer is 10%7 /100 * 10/7  * 100= 
<gadget id="calculator">7 /100 * 10/7  * 100</gadget>
<output>10</output>
10%   10%nswer is 10%
<result>A</result>
Two numbers are less than a third number by 30% and 37%. How much percent is the second number is less than the first?