The answer is 60, because 60-45=15
Answer:
For the average to be above 90, the marks in the fourth paper should be MORE THAN 92.
Step-by-step explanation:
The score of students in last 3 exams = 89 , 87 and 92
Let us assume the marks scored by the student in last exam = k
The average of marks should be above 90.
Now, 
Sum of all 4 paper's marks = 89 + 87 + 92 + k = 268 + k
Also, 90 < Average

Hence,for the average to be above 90, the marks in the fourth paper should be MORE THAN 92.
Answer:
Its D
Step-by-step explanation:
Answer:
Step-by-step explanation:
5×4+5×3
20+15
25
Answer:
I thank its b not sure sorry if its wrong