if you want to remove an article from website contact us from top.

    in an examination a student scores 3 marks for every correct answer

    Mohammed

    Guys, does anyone know the answer?

    get in an examination a student scores 3 marks for every correct answer from screen.

    In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 75 questions and secures 125 marks, the number of questions he attempted correctly, is

    Click here👆to get an answer to your question ✍️ In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 75 questions and secures 125 marks, the number of questions he attempted correctly, is

    Question

    In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 75 questions and secures 125 marks, the number of questions he attempted correctly, is 

    A

    35

    B

    40

    C

    42

    D

    46

    Medium Open in App

    Updated on : 2022-09-05

    Solution Verified by Toppr

    Correct option is B)

    If the number of correct answer be x, then

    the number of incorrect answer is (75−x).

    ∴4x−(75−x)=125orx=40

    Was this answer helpful?

    389 97

    स्रोत : www.toppr.com

    [Solved] A student gets +3 marks for each right answer and

    Given: The student gets +3 marks for each right answer and -0.5 mark for each wrong answer Total number of questions = 250 Total mark secured = 477

    Home Quantitative Aptitude Average

    Question

    Download Solution PDF

    A student gets +3 marks for each right answer and -0.5 mark for each wrong answer in an exam consists of 250 question. If the student get 477 marks in the exam; Find the number of wrong questions attempted by student.

    78 52 48 74

    Answer (Detailed Solution Below)

    Option 1 : 78

    Crack SSC+Banking+Railways Combo Pass with

    India's Super Teachers

    FREE

    Demo Classes Available*

    Explore Supercoaching For FREE

    Free Tests

    View all Free tests >

    FREE

    General Knowledge and General Awareness Practice Set

    62.3 K Users

    10 Questions 10 Marks 6 Mins

    Start Now

    Detailed Solution

    Download Solution PDF

    Given:

    The student gets +3 marks for each right answer and -0.5 mark for each wrong answer

    Total number of questions = 250

    Total mark secured = 477

    Concept:

    Assume the student has attempted all the 250 questions, so that if number of Wrong questions = x then, number of Right questions = 250 - x

    Calculation:

    Let number of Wrong questions attempted = x

    ⇒ Number of Right questions attempted = 250 - x

    Now,

    ((250 - x) × 3) - (x × (1/2)) = 477

    ⇒ ((750 - 3x) × 2) - x = 477 × 2

    ⇒ 1500 - 6x - x = 954

    ⇒ 7x = 546 ∴ x = 546/7 = 78

    The number of wrong questions attempted by student = 78

    Download Solution PDF

    Share on Whatsapp

    Latest SSC CPO Updates

    Last updated on Nov 16, 2022

    SSC CPO Tentative Answer Key for the SSC CPO Exam held from 9th to 11th November 2022 has been released. Candidates can raise objections against the answer key from 16th to 20th November 2022 against a fee of INR. 100 per question. SSC CPO Admit Card Link for CR, NER, MPR Region & Application Status for CR, WR, NR, NER, ER, MPR, KKR, SR Regions active! The Staff Selection Commission had released the exam date for Paper I of the SSC CPO 2022. As per the notice, Paper I of the SSC CPO is scheduled to be held from 9th November to 11th November 2022. The candidates can check out the SSC CPO Exam Analysis to check the difficulty level and good attempts for each shift exam.

    Win over the concepts of Average and get a step ahead with the preparations for Quantitative Aptitude with Testbook.

    India’s #1 Learning Platform

    Start Complete Exam Preparation

    Daily Live MasterClasses

    Practice Question Bank

    Mock Tests & Quizzes

    Get Started for Free

    Download App

    Trusted by 3.5 Crore+ Students

    ‹‹ Previous Ques Next Ques ››

    More Average Questions

    Q1. The average age of a class of 15 students is 20. If we add the teacher's age and exclude one student who is 20 years old, the average age of the class increases by 1. So find the age of the teacher.Q2. Calculate the average. 44, 40, 75, 25, 66 & 80Q3. Find the average of the first 45 numbers that are multiples of 15.Q4. Calculate the average. 74, 56, 89, 92, 68 & 35Q5. Calculate the average. 88, 89, 90, 64, 77 & 90Q6. The average weight of P, Q and R is 53 kg. If the average weight of P and Q is 47 kg and that of Q and R is 48 kg, what is the weight of Q? (In kg)Q7. The average of seven consecutive numbers is 49. What is the largest of these numbers?Q8. A museum has an average of 610 visitors on Sundays and 250 visitors on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday will be _______.Q9. If out of 10 selected students for an examination, 3 were of 20 years age, 4 of 21 and 3 of 22 years, the average age of the group isQ10. The average weight of 25 students is 16 kg. The average weight of the first 12 students is 14 kg and that of the last 12 students is 17 kg. Find the weight of the 13th student.

    स्रोत : testbook.com

    In an examination a student scores 3 marks for every correct answer and loses 2 mark for every wrong answer. If he attempts all 150 questions and scores 400 marks, wat is the number of questions he attempts incorrectly is?

    Answer (1 of 8): In an examination (+3) allotted for each correct answer and (-2) for each wrong answer). Student scores 400 marks. Let him get x correct answers and (150 - x) answers wrong. Equation formed would be: 3x - 2(150- x) = 400 => 3x - 300 + 2x = 400 5x = 700 therefore x = 140. Hen...

    In an examination a student scores 3 marks for every correct answer and loses 2 mark for every wrong answer. If he attempts all 150 questions and scores 400 marks, wat is the number of questions he attempts incorrectly is?

    Ad by Adclickersbot

    Make Money Easy And Safe Way.

    Adclickersbot is a Telegram earning platform that allows you to earn money by performing simple tasks.

    Sort Ram Kushwah

    B.Tech in Mathematics & Vipassanā (meditation), Malaviya National Institute of Technology, Jaipur (Graduated 1990)Author has 5.2K answers and 10.6M answer viewsJun 3

    Let correct ans=x then wrong answers

    =150−x =150−x then3x−2(150−x)=400 then3x−2(150−x)=400 3x−300+2x=400 3x−300+2x=400 5x=700 5x=700 x=140 x=140

    Thus wrong answered qn

    =150–140=10 =150–140=10 Related questions

    There are 100 questions in a question paper, each of 2 marks. But there is a negative making. 1 mark is deducted for each question answered incorrectly. A student answering all the questions got 80 marks. How many questions did he answer correctly?

    X attempts 100 questions and gets 340 marks. If every correct answer is 4 marks and wrong answer is negative one mark, then what is the number of questions wrongly answered by X?

    In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 75 questions and secures 125 marks, what is the number of questions he attempted correctly?

    In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts in all 40 questions and scored 120 marks, what is the number of questions he attempts incorrectly is?

    In an examination, a student scores 5 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 75 questions and secures 125 marks, the number of questions he attempts correctly, is :?

    Uma Subramanian

    Studied at Mumbai, Maharashtra, India (Graduated 1977)Author has 2.9K answers and 2.1M answer views2y

    In an examination (+3) allotted for each correct answer and (-2) for each wrong answer). Student scores 400 marks.

    Let him get x correct answers and (150 - x) answers wrong. Equation formed would be:

    3x - 2(150- x) = 400

    => 3x - 300 + 2x = 400

    5x = 700 therefore x = 140.

    Hence the student has answered 140 questions correctly and 10 questions incorrectly.

    Let's check:

    Correct = 3*140= 420

    Wrong = 2*10 = (-) 20

    Net marks scored= 400 marks.

    Sponsored by Grammarly

    Free English writing tool.

    Write in clear, mistake-free English with our free writing app. Try now!

    Manjunath Subramanya Iyer

    I am a retired bank officer teaching mathsAuthor has 7.2K answers and 7.7M answer views1y

    Suppose he has answered x questions incorrectly.

    Then he has answered 150 - x questions correctly.

    So we have the equation

    (150 - x)(3) + (- 2)(x) = 400

    => 450 - 3x - 2x = 400

    => 450 - 400 = 3x + 2x.

    => 5x = 50 x = 10.

    So the student answered 10 questions wrongly.

    Raji Bala Sep 25

    Let number of correctly answered questions be x

    number of wrongly answered questions = 150 - x

    x(3) + ((150-x) * (-2)) = 400

    3x -300 + 2x = 400 5x = 700 x = 140

    number of incorrectly attempted questions = 150-x

    = 150–140 = 10 Related questions

    In this examination of GMAT, consider that you score 2 marks for every correct answer and lose 0.5 marks for every wrong answer. If you have attempted all questions and scored 180 marks, what is the number of questions you got correct?

    In a math lesson, every correct answer scores 2 marks, -1 mark for every wrong answer and no mark for no answer. The test has 30 questions. What are the maximum possible scores?

    Alec is doing a test of 50 questions. He gets 2 marks for every question that is correct, but loses 1 mark for every question that is wrong. Alec answers every question and scores 67marks. How many questions did he answer correctly?

    In a test containing 20 questions, 5 marks are awarded for every correct answer and -3 for every wrong answer. A student answered 15 question correctly and the rest were incorrect. How much did he score?

    In an examination, a candidate gets 2 marks for the right answer & lose 1 mark for the wrong answer. He got 80 marks by answering 100 questions. How many of his answer were right?

    Raji Bala

    UPSC aspirant, former employee at Amazon, CS EngineerSep 25

    Let number of correctly answered questions be x

    number of wrongly answered questions = 150 - x

    x(3) + ((150-x) * (-2)) = 400

    3x -300 + 2x = 400 5x = 700 x = 140

    number of incorrectly attempted questions = 150-x

    = 150–140 = 10

    Sponsored by Global USA Green Card

    2022 is your year! Register now & get our special offers!

    A green card is the best and the fastest ticket to American life. Get a chance to win and apply today!

    Rajendra Kumar Phophalia

    BE from Birla Institute of Technology and Science, PilaniAuthor has 4.9K answers and 1.5M answer views2y

    Let he does x question in incorrectly. So 3(150-x)-2x=400 or 450–3x-2x=400 or -5x=400–450=-50 or x=10. So he did answered 10 incorrectly and 140 correctly questions.

    स्रोत : www.quora.com

    Do you want to see answer or more ?
    Mohammed 1 month ago
    4

    Guys, does anyone know the answer?

    Click For Answer