A player’s average test score on 4 tests is What must be his score on a 5th test for average score on 5 tests to be 80?
সমাধান
সঠিক উত্তর: Option D
Let the score in the 5th test be x. The sum of the first 4 tests = 78 X 4=312 Now it implies ,
312+x/5=80 Therefore, x=88
