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Q: In a competitive exam, 3 marks are to be awarded for every correct answer and for every wrong answer, 1 mark will be deducted. Sindhu scored 80 marks in this exam. Had 4 marks been awarded for each correct answer and 2 marks deducted for each incorrect answer. Sindhu would have scored 90 marks. If Sindhu attempted all the questions, then the number of questions in the test are :
  • A. 60
  • B. 55
  • C. 70
  • D. 50
Correct Answer: Option A -
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Explanations:

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