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On a 50-question test, a student answered 5 questions incorrectly. What percent did the student answer correctly? A. 55% B. 45% C. 10% D. 90%

Respuesta :

kenmyna
to  solve,
find  the  number  of  question  that  the  student  answered correctly
 That  is  50-45
    all 50  question of   the  test represented   100%
 what  about 45  question that  were answered   by the  student  correctly
 by  cross  multiplication
      
                  45    x100/50 =90%(D)
   
Louli
Total number of questions = 50
Number of questions answered incorrectly = 5
Therefore,
Number of questions answered correctly = 50-5 = 45 questions

Now, to get the percentage of correct answers, we will divide the number of correct answers by the total number of questions and then multiply the quotient by 100 as follows:
% of correct answers = (45/50) * 100 = 90%

Comparing the calculated value to the choices we have, we will find that the correct choice is:
D. 90%

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