Question

in a quiz +2 marks are given for correct answer and -1 mark for an incorrect answer

a)rita got 18 correct answers and 7 incorrect answers. what is her final score?

b) sheena got 15 coreect answers and 15 incorrect answers. whats her final score?

Answer 1

a》18×2-7

36-7

29

b》15 ×2-15

30-15

15