After taking three tests average = 84
This mean a student in three test scored 3 * 84 = 252 pt
average = 252 / 3 = 84
After four test a student average = ( 252 + 96 ) / 4 = 348 / 4 = 87
Answer C
A student had an average of exactly 84 marks
after taking three tests. On the fourth test, he
scored 96%. The average for all four tests is
A. 84
B. 86
C. 87
D. 82
2 answers
The total of Mandys marks for the three tests is
3*84 =252
3*84 =252
4 answers