Friends can you please help me to solve this problem
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suppose,
Step-by-step explanation:
maximum mark= no.of question × marks gain on per question =100×3=300marks . rakesh scored 190 and answered 70 questions = 70×3=210. given he scored 190 . so, marks deducted = 210-190=20. here it is given every incorrect question deduct marks by1. so questions incorrect = 20/1=20
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