1 subtracted from one third a number gives 1. Find the number.
bkk02602
Asked:
December 2022
In a test, +3 marks are given for every correct answer and -1 mark are given for every correct answer. Sona attempted all the questions and scored +20 marks though she got 10 correct answers. (i) How many incorrect answers has she attempted? (ii) How many questions were given in...