a)When does Tan have Literature ?
=>He has it on Wednesday.
b)When does Tan have Mathematics?
=>He has it on Tuesday.
c)When does Tan have Geography?
=>He has it on Thursday.
d) When does Tan have History?
=>He has it on Friday.
e)When do Nga and Chi have English?
=>They have it on Thursday.
f)When do Nga and Chi have Literature?
=>They have it on Friday.
g)When do Nga and Chi have Mathematics?
=>They have it on Monday.
h)When do Nga and Chi have Geography?
=>They have it on Wednesday.
i)When do Nga and Chi have History?
=>They have it on Tuesday.
Good luck.