Answer:
Number of true-false questions =15
Number of multiple choice questions =5
Step-by-step explanation:
Number of true-false questions =
Number of multiple choice questions =
Total number of question =
Points for true-false questions = 4
Total points for true-false questions = 
Points for multiple choice questions = 8
Total points for multiple choice questions = 
Total points of the test = 
We have 2 equations now:
(1) 
(2) 
We need to solve the 2 equations to find
and
.
Dividing equation 2 by 4.

(2a) 
Multiplying equation (2a) with (-1)

(2b) 
Adding equation (2a) with equation (1).



[ Divided both sides by -1]
Substituting value of
in equation (1).

Subtracting both sides by 5.


∴
Number of true-false questions =15
Number of multiple choice questions =5