a test (+3) marks are given for every correct answer and (–2) marks are given for every
incorrect answer. Amatul answered all the questions and scored 20 marks though she got 10
correct answers.. How many incorrect answers had she attempted? please explain and do the solution. very fast please
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kha-amjw-tzf
ⓄⓃ ⓂⒺⒺⓉ
ⒻⓄⓇ ⓃⒶⓊⒼⒽⓉⒾⓁⓎ ⒻⓊⓃ
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