📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

    Question

    42.5% of 20% of 960 = x + 18.4, then find the sum of the

    squares of each digit in 'x'.
    A 49 Correct Answer Incorrect Answer
    B 67 Correct Answer Incorrect Answer
    C 45 Correct Answer Incorrect Answer
    D 85 Correct Answer Incorrect Answer

    Solution

    ATQ,

    42.5% of 20% of 960 = x + 18.4

    Or, (17/40) × (20/100) × 960 = x + 18.4

    Or, 81.6 = x + 18.4

    Or, x = 81.6 − 18.4 = 63.2

    Now, ignore decimal and take only digits: 6, 3, 2

    Required sum = 6² + 3² + 2² = 36 + 9 + 4 = 49

    Practice Next
    More Algebra Questions

    Relevant for Exams:

    ask-question