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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

Thenmalar appeared for competitive exam which has negative scoring of 1 mark for each incorrect answer. In paper I she answered 25 questions incorrectly and in paper II, 13 questions incorrectly. - Mathematics

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Question

Thenmalar appeared for competitive exam which has negative scoring of 1 mark for each incorrect answer. In paper I she answered 25 questions incorrectly and in paper II, 13 questions incorrectly. Find the total reduction of marks

Sum

Solution

For each incorrect question the score = −1

In paper I, for 25 incorrect questions the score = – 25 × (−1) = −25

In paper II, for 13 incorrect questions the score = 13 × (−1) = −13

The total marks get reduced = (−25) + (−13) = −38

−38 marks will be reduced.

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Chapter 1: Number System - Exercise 1.1 [Page 9]

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Samacheer Kalvi Mathematics - Term 1 [English] Class 7 TN Board
Chapter 1 Number System
Exercise 1.1 | Q 4 | Page 9
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