SOLUTION: Your average (arithmetic mean) score on five exams is 67. If your professor drops the lowest test score, then your average of the four remaining scores is 70. What is the lowest

Question 413892:
Your average (arithmetic mean) score on five exams is 67. If your professor drops the lowest test score, then your average of the four remaining scores is 70. What is the lowest score that you got on all five exams?

Answer by bayners123(12) (Show Source): You can put this solution on YOUR website!
If you consider the 4 exams with the lowest removed you will see that the average is 70, so this lets you know that on these four there was a total or 280 (70 x 4) scored.
Now with all 5 you can see the average was 67, so this means you scored a total of 335 on all 5 (67 x 5). You know you got 280 on the other four, so to find out now just subtract the 280 away from the 335 to find that the last score was 55.
RELATED QUESTIONS
Your average (arithmetic mean) score on four exams is 82. If your professor drops the... (answered by Fombitz)

Your average score on four exams is 82. If your professor drops the lowest exam score... (answered by Fombitz)

five test scores average 72%. If you drop the lowest score you increase your average to... (answered by stanbon)

Average of 77 percent on first six exams if drops lowest score it becomes 81 percent what (answered by josmiceli)

If your average score on your first six mathematics tests was 84 and your average score... (answered by Theo)

the average of your first 6 test is 82. if your test average after your seventh test is... (answered by ewatrrr)

A student has 11 test grades with an average of 80. His lowest score is a 50. If he drops (answered by reviewermath)

Larry's average (arithmetic mean) score on the first four of five tests is 88. If Larry... (answered by alicealc)

your average score for 3 test is 75 what score should you get on the fourth test to... (answered by josgarithmetic)