In a test (+5) marks are given for every correct answer and (-2) marks are given fir every incorrect answer. Radhika answered all the questions and scored 30 marks though she got 10 correct answer
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In a test (+5) marks are given for every correct answer and (-2) marks are given fir every incorrect answer. Radhika answered all the questions and scored 30 marks though she got 10 correct answer
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Answer:
marks for 10 correct answer = 10×5 =50
she scores = 30
marks lose incorrect answer = 20
number of incorrect answer = 20/2 =10
total question = 20