Question

A unit test paper contains 20 question. students are awarded 3 marks for each correct , -1 marks for each incorrect. twisha sets 10 correct and 10 incorrect answers . what will be her score ?
ans wit step by step explaination
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Answer 1

Answer:

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Step-by-step explanation:

Marks given for correct answers= 3

Marks given for incorrect answers=(-1)

Twisha:-

Correct answers & Marks=10 ={10×3}=30 marks

Incorrect answers and marks=10 ={10×(-1)}= (-10)

TOTAL MARKS SCORED BY HER= 30+(-10)

= 20 marks

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