SOLUTION: In an examination a student who gets 20% marks failed by 5 marks. Another student who scores 30% which is 20 more than pass marks.what is the necessary percentage required for pass

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Question 579083: In an examination a student who gets 20% marks failed by 5 marks. Another student who scores 30% which is 20 more than pass marks.what is the necessary percentage required for passing?
Answer by dfrazzetto(283) About Me  (Show Source):
You can put this solution on YOUR website!

.3x - .2x = 25
x = 250 total points
30% = 75 - 20 = 55
20% = 50 + 5 = 55
55 is 5 over 20% and 20 less than 30% of 250
55/250 = 22%