Q1:
A test has 50 questions. A student scores 1 mark for a correct answer, -1/3 for a wrong
answer, and -1/6 for not attempting a question. If the net score of a student is 32, the number
of questions answered wrongly by that student cannot be less than
1. 6 2. 12 3. 3 4. 9

pl explain . thanks.
Oa- [spoiler].....3) 3.[/spoiler]