Kala has scored 21,22,20,20 and 17 point in her five basketball game so far. How many points does she need to score in her next game so that her average (mean) is 21 points per game?
Step 1: Add up all the scores. Step 2: count the number of scores. step 3: divide the sum of the scores by the number of scores themselves. step 4: The answer is 26 points.
