Question

please solve all please​

Answer 1

b) i) Liva's score if she only attempted 10 questions = 10 X Mark for one attempted answer

= 10 X 1

= 10

ii) Incorrect answers by James = 8

Correct answers by James = 7

Mark for one correct answer = +3

Mark for one incorrect answer = -1

TOTAL MARKS = (8 X -1) + (7 X 3)

= ( -8 ) + ( 21 )

= (13)

Hence , his total score is 13.

iii) Correct answers by Syria = 6

Incorrect answers by Syria = 5

Questions attempted by Syria whether

they were wrong or right = 6+5+x = 15

= 11+x = 15

= x = 4

MARKS FOR -

Correct Answers = 6 X 3 = 18

Incorrect Answers = 5 X (-1) = (-5)

Attempted questions = 4 X 1 = 4

TOTAL SCORE = 18 - 5 +4

= 17

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