Question

In a true-false test containing 50 questions, a student is to be awarded
2 marks for every correct answer and-2 for every incorrect answer
and 0 for not supplying any answer. If Yash secured 94 marks in a
test. what are the possibilities of his marking correct or
Wrong answer?​

Answer 1

Answer:

either she attempted 47 and all are correct

47×2=94

or she attempted 49 and 48 are correct and 1 is wrong

48×2-2×1=96-2=94

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