The average score of 12 students of a class is ‘x’, if the score of 13th student is 50 included in this group, the average score of whole class is decreased by 3 Marks. Find the value of ‘x’.
1
89
2
90
3
91
4
92
The average score of 12 students of a class is ‘x’, if the score of 13th student is 50 included in this group, the average score of whole class is decreased by 3 Marks. Find the value of ‘x’.