edited by
420 views
0 votes
0 votes

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

  1. $6$
  2. $12$
  3. $3$
  4. $9$
edited by

Please log in or register to answer this question.

Related questions

0 votes
0 votes
0 answers
2
go_editor asked Feb 10, 2016
392 views
Let T be the set of integers $\{3, 11, 19,27, \dots ,451, 459, 467\}$ and S be a subset of T such that the sum of no two elements of S is $470.$ The maximum possible numb...
0 votes
0 votes
0 answers
3
go_editor asked Feb 10, 2016
366 views
The number of positive integers $n$ in the range $12 \leq n \leq 40$ such that the product $(n-1)(n-2) \dots 3 \cdot 2 \cdot 1$ is not divisible by $n$ is$5$$7$$13$$14$
0 votes
0 votes
0 answers
4
go_editor asked Feb 10, 2016
357 views
In a certain examination paper, there are n questions. For $j=1, 2, \dots,n,$ there are $2^{n-i}$ students who answered $j$ or more questions wrongly. If the total number...
0 votes
0 votes
0 answers
5
go_editor asked Feb 10, 2016
312 views
If the product of $n$ positive real numbers is unity, then their sum is necessarily a multiple of $n$equal to $n+\left(\frac{1}{n}\right)$never less than $n$a positive in...