If 18 is 15 percent of 10 percent of a certain number, what is the number?  Choose the correct choice from the following answers:	A) 9	B) 1200	C) 40	D) 81	E) 400
Let the certain number be x.   =&gt; (15/100)*(10/100)*x = 18;   =&gt; x=1200;   Ans is (1200).
<result>B</result>
If 18 is 15 percent of 10 percent of a certain number, what is the number?