SOLUTION: A pupil scored 30% in a maths test.if the teacher had given out 40 questions,how many questions did the pupil fail.

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: A pupil scored 30% in a maths test.if the teacher had given out 40 questions,how many questions did the pupil fail.      Log On


   

Question 964981: A pupil scored 30% in a maths test.if the teacher had given out 40 questions,how many questions did the pupil fail.
Found 2 solutions by rfer, macston:
Answer by rfer(16322) About Me  (Show Source):
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
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If the student got 30% correct, he got 70% wrong. 70% 0f 40 questions is:
(0.70)(40)=28
ANSWER: The student was incorrect on 28 questions.