Explanation:
no:questions=15
correct questions =9
marks for correct answers =9×4=36
incorrect answers=6
marks for incorrect answers =(-2)×6=(-12)
full marks =36 - (-12)
=36 + 12
=48
Answer:
48
(9*4) + (6*2)
36 + 12
= 48
4.4m questions
5.7m answers