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There are 30 questions in a multiple -choice test. A student gets 1 mark for each unattempted question, 0 mark for each wrong answer and 4 marks for each corrent answer. A student answered $x$ question correctly and scored 60 . Then the number of possible value of $x$ is
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2099 Upvotes
Verified Answer
The correct answer is:
6
\begin{array}{|c|c|c|}
\hline Right & Wrong & Unattempted \\
(4 marks) & (0 mark) & (1 marks) \\
\hline 15 & & 0 \\
14 & & 4 \\
13 & & 8 \\
12 & & 12\\
11 & & 16\\
10 & & 20\\
\hline
\end{array}
6 cases.
\hline Right & Wrong & Unattempted \\
(4 marks) & (0 mark) & (1 marks) \\
\hline 15 & & 0 \\
14 & & 4 \\
13 & & 8 \\
12 & & 12\\
11 & & 16\\
10 & & 20\\
\hline
\end{array}
6 cases.
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