The average of 10 students test scores was 69. Three students scored 80, 60 and 40, respectively. Three students scored 90 and two students scored 50. The other two students received the same score. What were their scores?

• ans 70
  80+60+40+90+90+90+50+50+2x = 69*10
  x =70
• 9 years agoHelpfull: Yes(1) No(0)
• avg of 10 stdnts score=690
  so total score=10*69=690
  score of all th students =80+60+40+90+90+90+50+50+x+x=690
  550+2x=690
  2x=140
  x=70
• 9 years agoHelpfull: Yes(0) No(0)