UGC NET CSE | December 2014 | Part 3 | Question: 03

Question

In a dot matrix printer the time to print a character is $6$ m.sec., time to space in between characters is $2$ m.sec., and the number of characters in a line are $200$. The printing speed of the dot matrix printer in characters per second and the time to print a character line are given by which of the following options ? 

• A. $125$ chars/second and $0.8$ seconds 
• B. $250$ chars/second and $0.6$ seconds 
• C. $166$ chars/second and $0.8$ seconds
• D. $250$ chars/second and $0.4$ seconds 

Answer 1

total characters =200  each character having one space

total time to print 200 chars=200x6 =1200 ms

total time to space in =200x2=400 ms

200 charactes total print time =1600 ms =1.6 sec

The printing speed of the dot matrix printer in characters per second  
=200/1.6 =125 character per sec

line will take 1.6 sec

Hence all options are incorrect. Marks to All given in exam.