ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!

    Question

    A student scored marks with a certain average in the

    first 12 tests. In the next 6 tests, he scored with an average of 78 marks, due to which his overall average increased by 4 marks. What was his average in the first 12 tests?┬а
    A 62 Correct Answer Incorrect Answer
    B 66 Correct Answer Incorrect Answer
    C 68 Correct Answer Incorrect Answer
    D 70 Correct Answer Incorrect Answer

    Solution

    Let, average marks in first 12 tests is x So, (12 ├Ч x + 6 ├Ч 78)/18 = x + 4 Or, 12x + 468 = 18x + 72 Or, 6x = 396 Or, x = 66

    Practice Next
    More Average Questions

    Relevant for Exams:

    ask-question