A certain business printer can print 100 characters per second, which is 5 times faster than an average printer. If an average printer can print 4 times faster than an electric typewriter, how many characters per minute can an electric typewriter print?	Answers.
A) 300
B) 350
C) 200
D) 250
E) 400
Rate at which a business printer can print = 100 characters per second   Rate at which an average printer can print = (100/5)= 
<gadget id="calculator">(100/5)</gadget>
<output>20</output>
20 characters per second   300verage printer's rate= 4*Electric typewriter's rate   =&gt;Electric typewriter's rate = 20/4= 
<gadget id="calculator">20/4</gadget>
<output>5</output>
5 characters per second= 5*60= 
<gadget id="calculator">5*60</gadget>
<output>300</output>
300 characters per minute   300nswer 300
<result>A</result>
A certain business printer can print 100 characters per second, which is 5 times faster than an average printer. If an average printer can print 4 times faster than an electric typewriter, how many characters per minute can an electric typewriter print?