New RBI Grade B 2025 Notification will come Soon! Enroll Here

    Question

    To be successful in a competition, Marlin needs 100

    average scores in 4 exams. The scores of the previous three exams are 136, 106 and 76, respectively. To succeed in the competition, how much will he have to score in the fourth test?
    A 84 Correct Answer Incorrect Answer
    B 86 Correct Answer Incorrect Answer
    C 82 Correct Answer Incorrect Answer
    D 88 Correct Answer Incorrect Answer

    Solution

    We can use this formula to solve for x: 100= (136+106 + 76 + x)/4 Multiplying both sides by 4: 400=318 + x Subtracting 222 from both sides: x = 82 Therefore, Marlin needs to score 82 in the fourth exam to achieve an average score of 100 in all four exams.

    Practice Next

    Relevant for Exams: