Saved Bookmarks
| 1. |
In a test, +2 marks are given for each correct answer and ( - 1 ) for each wrong answer. A student has scored 21. If he has attempted total of 12 correct questions. How many questions has he attempted incorrectly ? [4 MARKS] |
|
Answer» In a test, +2 marks are given for each correct answer and ( - 1 ) for each wrong answer. A student has scored 21. If he has attempted total of 12 correct questions. How many questions has he attempted incorrectly ? |
|