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ladybug2098
ladybug2098 ladybug2098
  • 08-06-2016
  • Mathematics
Answered

A student received a 75% on an exam. If there were 20 questions on the exam, which ratio would show the number of questions answered correctly?

A15:20
B20:15
C5:20
D20:5

Verified Answer :

W0lf93
W0lf93 W0lf93
  • 23-08-2017

Assuming the question is asking for the ratio of questions answered correctly to the number of questions, A is the correct answer. 75% of 20 is 15 ((20/4) x 3), so 15:20 is correct, though this can be cancelled to 3:4. If the question asks for the ratio of correct to incorrect answers, the ratio would be 15:5, or 3:1.

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