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

    Question

    A student multiplied a number by 3/5 instead of

    5/3, What is the percentage error in the calculation ?
    A 54 % Correct Answer Incorrect Answer
    B 64 % Correct Answer Incorrect Answer
    C 74 % Correct Answer Incorrect Answer
    D 84 % Correct Answer Incorrect Answer

    Solution

    Let the number be x. Then, ideally he should have multiplied by x by 5/3. Hence Correct result was `x xx5/3=(5x)/3` By mistake he multiplied x by 3/5 . Hence the result with error = `(3x)/5` Then, error = `(5x)/3-(3x)/5=(16x)/15` Error % = `(Error)/(True Value)xx100=(16/15x)/(5/3x)xx100=64%`

    Practice Next
    More Percentage Questions

    Relevant for Exams:

    ask-question