In an examination of n questions, a student replied 15 out of the first 20 questions correctly. Of the remaining questions, he answered one-third correctly. All the questions have the same credit. If the student gest 50% marks, the value of n is? |
|
|||||||
(a) |
20 |
(b) |
40 |
(c) |
50 |
(d) |
100 |
In an examination of n questions, a student replied 15 out of the first 20 questions correctly. Of the remaining questions, he answered one-third correctly. All the questions have the same credit. If the student gest 50% marks, the value of n is? |
|
|||||||
(a) |
20 |
(b) |
40 |
(c) |
50 |
(d) |
100 |