If 50% of 100 is greater than 20% of a number by 47, what is the number? Choose the correct answer.
A) 60 B) 30 C) 15 D) 75 E) 100
Explanation:   50/100 * 100 - 20/100 * x = 47   50 - 20/100 * x = 47   3 = 20/100 * x     3 * 100 / 20= 
<gadget id="calculator">  3 * 100 / 20</gadget>
<output>15</output>
x   15= x   Answer: Option 15
<result>C</result>
If 50% of 100 is greater than 20% of a number by 47, what is the number?