Raj scored 67, 69, 78, and 88 in 4 of his subjects. What should be his score in the 5th subject so that his average equals 80?
A. 88
B. 90
C. 96
D. 98
Answer:D
Raj scored 67, 69, 78, and 88 in 4 of his subjects. What should be his score in the 5th subject so that his average equals 80?
A. 88 B. 90 C. 96 D. 98