Asked by kartikey
In a Maths exam, two marks are given for every correct answer and one negative mark for every incorrect answer. If Sushmita gets 48 correct answers and her score is 84, how many questions did she answer correctly ?
Answers
Answered by
oobleck
2*x - 1*(48-x) = 84
3x = 132
x = 44
check: 2*44 - 4 = 84
3x = 132
x = 44
check: 2*44 - 4 = 84
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