Q3,p3,d14. In a dot matrix printer the time to print a character is 6 m.s ec., 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 A.

It prints 200 characters in 1600x10^-3s hence  so in 1 sec it prints 200000/1600=125character/sec.