If 40% of a certain number is 160, then what is 10% of that number?
Select the correct option.
A) 100
B) 40
C) 80
D) 120
E) 110
Explanation:   40% = 40*4= 
<gadget id="calculator">40*4</gadget>
<output>160</output>
160   10%= 10*4= 
<gadget id="calculator">10*4</gadget>
<output>40</output>
40   Answer: Option 40
<result>B</result>
If 40% of a certain number is 160, then what is 10% of that number?