SOLUTION: A student has scored 80, 98, 78 and 94 out of 100%. If he is determined to have an average score of 95% in five subjects, what minimum score, should he obtain in the remaining

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Question 1158024: A student has scored 80, 98, 78 and 94 out of 100%. If he is determined to have an average score of 95% in five subjects, what minimum score, should he obtain in the remaining subject
Found 3 solutions by Shin123, MathTherapy, josgarithmetic:
Answer by Shin123(626) About Me  (Show Source):
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If he wants to get an average of 95, the sum of the 5 scores must be at least 95%2A5=475. The sum of the first four subjects are 80%2B98%2B78%2B94=350. So he should obtain at least 475-350=125 to get a 95 or higher average.

Answer by MathTherapy(10552) About Me  (Show Source):
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A student has scored 80, 98, 78 and 94 out of 100%. If he is determined to have an average score of 95% in five subjects, what minimum score, should he obtain in the remaining subject
NONE!! He cannot! 

It states that the scores are out of 100. How can this person score a 125 out of 100?

Answer by josgarithmetic(39620) About Me  (Show Source):
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The highest individual, LAST score can be 100%. What THIS does to the final AVERAGE score is %28100%2B350%29%2F5=90. The student CANNOT reach an average of higher than 90%, so this will not allow the 95% .