Question

12. In an examination, there were 25 questions. 2 marks were
allotted for each correct answer and 1/2 mark was deducted for
each wrong answer. A student who answered all the 25
questions got 37 1/2 marks. How many questions did he answer
wrong?
(a) 5
(b) 6
(c) 8
(d) 10
(e) 12​

Answer 1

Answer:

The correct answer is e) 12