Mathematics · Linear Equations
In an examination there are 150 questions. 4 marks are given for every correct answer and 1 mark is deducted for every wrong answer. A candidate attempted all 150 questions and scored 250 marks. Find the number of questions he answered correctly.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 160
- 250
- 380✓
- 470
Correct answer
80
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