How many digits are required to number a book containing 300 pages?	Choose the correct option.
A) 792	B) 684	C) 492	D) 372	E) 340
9 pages from 1 to 9 will require 9 digits.   90 pages from 10 to 99 will require   90*2= 
<gadget id="calculator">  90*2</gadget>
<output>180</output>
180 digits.   300-(90+9)= 
<gadget id="calculator">300-(90+9)</gadget>
<output>201</output>
201 pages will require   201*3= 
<gadget id="calculator">  201*3</gadget>
<output>603</output>
603 digits.   The total number of digits is 9+180+603= 
<gadget id="calculator">9+180+603</gadget>
<output>792</output>
792.   The answer is 792.
<result>A</result>
How many digits are required to number a book containing 300 pages?