Question 1201210


Jung's average on 2 biology quizzes is 7. what should Jung's score on the next quiz be in order to have an average of 8 for the 3 quizzes?  


Jung's average on 2 biology quizzes is 7. Total = 2*7 =14

Required average = 8 = (14 +x)/3   where x is the score in third test

24 = x+14

24-14 =x
x=10

The score should be 10 in the third