12. in mathematics paper there are 10 problems. each correct answer carries 5 marks whereas for each incorrect answer 2 marks are deducted from the marks scored. abdul answered all the questions but got only 29 marks. find the number of correct answers given by abdul.
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Answer:
7 correct answers
Step-by-step explanation:
correct answers=7
7×5=35
incorrect answers=3
3×2=6
total marks= 35-6=29
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