6. Alvin’s Grades In His 4 Subjects Are 88 , 92, 89 ,90. What Grade Must H…
6. Alvin’s grades in his 4 subjects are 88 , 92, 89 ,90. What grade must he get in his 5th subject to get an average of 90?
Answer:
91 should be his 5th grade
Step-by-step explanation:
Average of 90 x 5=450
Total Grades 88+92+89+90=359
450-359= 91
