SOLUTION: 130-question test a student answered 78 correctly. What percent of the problems did the student work correctly?

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Question 919544: 130-question test a student answered 78 correctly. What percent of the problems did the student work correctly?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

130-question test a student answered 78 correctly;
find: x% of 130 equal to 78
x%= x%2F100
%28x%2F100%29130=78............solve for x
%28x%2F10cross%280%29%2913cross%280%29=78
%28x%2F10%2913=78
x%2A13=78%2A10
x=780%2F13
x=60
so, the student work 60% of the problems correctly