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AnnZ [28]
3 years ago
13

The average score of those students who passed a test was 65, the average score of those who did not pass was 35, and the overal

l average score was 53. What percentage of the students passed the test?
Mathematics
1 answer:
FrozenT [24]3 years ago
4 0

Answer:

60%

Step-by-step explanation:

To find the total pass = 65 * number of student that passed, let it be be represented by P and number of students that failed F

Total pass = 65p

And total fail = 35F

For the total pass and failure will be 53(P+F)

Equating to total pass and total fail

65P +35F = 53( P+ F)

65P+35F = 53P+ 53F

65P-53P =53F-35F

12P=18F

2P= 3F

Hence there are 3 passing scores for every 2 failure scores, hence there are a multiple of 5 scores and the same multiple of 3 passing scores.

3/5 * 100= 60%

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