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put this solution on YOUR website!Of the 130 students who took a math exam, 90 correctly answered the first question , 62 correctly answered the second question, and 50 correctly answered both questions.
a. How many students correctly answered either the first or second question?
#= 90 + 62 - 50 = 102
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b. How many students did not answer either of the two questions correctly?
# = 130-102 = 28
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c. How many students answered either the fist or second question correctly, but not both?
# = 90-50 + 62 - 50 = 52
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Cheers,
Stan H.
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