Saved Bookmarks
| 1. |
Question no. 3 solve this urgent plz |
|
Answer» let no of right ANS be x and wrong be y 3x-y=40=6x-2y=80(1) 4x-2y=50(2) (1)-(2) 2x=30 x= 15 y= 3x-40=45-40=5 so no. of questions = x+y=20 |
|