A student has taken 4 exams. Each exam is worth 5% of his course. In his first exam he scored 20/22 in his second 19/28 in his third 9/20 and in his fourth 14/20. What is the percentage has he so far?
2007-01-19 10:23:02 · 7 answers · asked by Princess Peach 3 in Science & Mathematics ➔ Mathematics
The marks so far are:
1st: 20/55 = 91%
2nd: 19/28 = 68%
3rd: 9/20 = 45%
4th: 14/20 = 70%
Now take 5% of these marks and add them:
1st: 5% X 91 = 4.55
2nd: 5% X 68 = 3.40
3rd: 5% X 45 = 2.25
4th: 5% X 70 = 3.50
So the total marks are: 13.7%
Hope this helps.
2007-01-20 09:43:45 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Total marks to date = 62
Possible marks = 90
% marks to date =62/90 x 100 =68.9%
Oops I did'nt see your first bit about the course work
90 marks is 20% of the coursework so 100% will be 450marks
he has scored 62 already so to date he will be on
60/450 x 100 = 13.3 % Sorry,eyes getting old.
2007-01-19 18:32:45 · answer #2 · answered by Anonymous · 1⤊ 1⤋
Work out the percentage he earned on each test by division and multiplying by 100.
Then take the four marks and add them and then divide by 4.
2007-01-19 18:28:26 · answer #3 · answered by keely_66 3 · 0⤊ 0⤋
1st exam: 20/22 = 9.09/5
2nd exam: 19/28 = 3.39/5
3rd exam: 9/20 = 2.25/5
4th exam: 14/20 = 3.5/5
So percentage so far is 18.23%
2007-01-19 18:29:16 · answer #4 · answered by Kemmy 6 · 0⤊ 3⤋
.05(.91 + .68 + .45 + .7) = .137 = 13.7%
2007-01-19 18:37:03 · answer #5 · answered by ironduke8159 7 · 1⤊ 0⤋
oh no,not at this time of night
2007-01-19 18:38:15 · answer #6 · answered by QPRfan 6 · 0⤊ 1⤋
15.2/25
2007-01-19 19:06:21 · answer #7 · answered by Narayan 3 · 0⤊ 1⤋