In a test (+3) marks are given for every correct answer and (-1) marks are given for every incorrect answer. Radhika answered all the questions and scored 30 marks though she got 15 correct answers. Jay answered all the questions and still he scored (-10) even though he got 5 correct answers. How many incorrect answers had they attempted
Answers
Answered by
0
Step-by-step explanation:
Radhika's incorrect answers= 15 correct answers x (+3) marks
= Marks for correct answers for Radhika= 45 marks
Total marks scored by Radhika = 30 marks
Total marks for incorrect answers for Radhika= 45 marks - 30 marks
=15 marks
Incorrect answers attempted by Radhika= 15 x -1 = (-15) answers
Attempted incorrect cannot be in a negative sign
So, Radhika has attempted 15 answers incorrectly
Jay's incorrect answers = 5 correct answers x (+3) marks
= Marks for correct answers for Jay= 15 marks
Total marks scored by Jay = (-10) marks
Total marks for incorrect answers for Jay= 15marks - (-10) marks
=25 marks
Incorrect answers attempted by Jay= 25 x -1 = (-25) answers
= So, Jay has attempted 25 answers incorrectly
Similar questions