Question

1. In a test 5 marks are given for every incorrect answer and (-2) marks are
given for every incorrect answer (1) Radhika answered all the question.
and scored 30 marks through she got 10 correct answer (ii) by also
answered all the questions and scored (-12) marks through he got 4 cm
answers. How mary incorrect answers had they attempted.​

Answer 1

mark of 1 incorrect answer = -2

mark of 12 incorrect answer = -12 /-2 = 6

so she attempted 6 incorrect answer