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

Solution:

Total marks Yash secured = 94 marks

Minimum correct answers = 94 ÷ 2 = 47

Now, as per the situation we observed that two possibilities are there,

1. He attempted 47 correct answers and 3 un-attempted.
2. He attempted 48 correct and 1 un-attempted and 1 wrong answer.

✦ Try This: Fill in the blank: a. -7 + (-13) = ____. b. 17 × __ = -323

Now to fill the given blank we can apply integer rules and the rule of multiplication.

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 1

NCERT Exemplar Class 7 Maths Chapter 1 Exercise Problem 133

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

Summary:

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. After applying the integer rules we examined that two possibilities are there.ba. He attempted 47 correct answers and 3 un-attempted. b. He attempted 48 correct and 1 un-attempted and 1 wrong answer.

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