Originally Posted by Mir Munsif

four computer operators (ALI, BABAR,CHEEMA and DAR ) each have to perform duties at the nadra on four diffrent days, thursday through sunday.
following is their duty shedule :
CHEEMA has his duty day before ALI. DAR has his duty day later then BABAR.
Q1 which of the following is a possible order of duty days for the four operators?
a. cheema dar ali and babar
b. dar cheema ali and babar
c. babar cheema dar and ali
d. ali cheema dar and babar
Q2. if CHEEMA has his duty day on saturday, who must have his duty day on thursday?
a. either ali or dar
b. dar
c. ali
d. babar
Q3 each of following possible excect:
a. cheema has his duty on thursday
b. babar has his duty on thursday
c dar has his duty on saturday
d. babar has his duty on sunday
solve these questions