Question

1 In a class test containing 15 questions, 5 marks are given for every correct answer and (-2)
marks are given for every incorrect answer
( Karina attempts all questions but only 10 of her answers are correct and remaining answers are
wrong
What is her total score?
(n) One of her friends Preeti gets only 7 answerscorrect and the remaining wrong. What will be
her score?​

Answer 1

Answer:

Karina score 60

Preeti score 45

Step-by-step explanation:

Karina:  [10×5] - {-2×5}

             50 - {-10} =60

Preeti : [7×5] - {-2×5}

            35 - {-10} = 45

   

Answer 2

Step-by-step explanation:

According to question,

5 marks on every correct answer & (-2) on every wrong answer

So, there were 15 questions at all

B) Preeti gave 7 correct and rest worng

=15-7=8 ->preeti gave 8 answers incorrect

So, 5x7 - (8x-2)=35-(-16)=35+16=51

Therefore, preeti got 51

A)Karina gave 10 correct and rest wrong

= 15-10=5

Karina gave 5 answers worng

So, 10x5 - (5x-2)=50-(-10)=50+10=60

Therefore karina got 60

Hope you mark it brainliest