In a class test (+5) marks are given for every correct answer and (-3)marks are given for every incorrect answer and no marks for not attempting any question
(a) Neha scored 30marks . If she has got 15 correct answers, how many questions has she attempted incorrectly?
(B) Shalini scores -5marks in test, though she got 8 correct answers . How many questions has she attempted incorrectly ?
Answers
Answered by
13
Neha's score =30 marks. Neha's right answer=15, then 15x5 =75 Neha's wrong answer = 30-75 =45 ÷ -3 = -15 = 5 Therefore Neha's attempted 5 wrong answers Shalini's score = -5 Shalini right answers =8x5=40 Shalini wrong answer = -5-40= -45÷-3 = 15
Answered by
0
Answer:
the above photo is your answer thank you please mark me as
Attachments:
Similar questions