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


    Question

    The ratio between the sum of the digits of a two-digit

    number and that two-digit number is 1 : 7. If the digit in the unit's place is four less than the digit in the ten’s place, then find the 56% of the number.
    A 86.16 Correct Answer Incorrect Answer
    B 58.12 Correct Answer Incorrect Answer
    C 47.04 Correct Answer Incorrect Answer
    D 50.15 Correct Answer Incorrect Answer

    Solution

    ATQ, Let ten's digit and unit's digit be x and (x-4) respectively Sum of digits = x + (x-4) = 2x – 4 Let the number be 10x + (x-4) = 11x - 4 (2x – 4) / (11x – 4) = 1/7 14x – 28 = 11x – 4 3x = 24 x = 8 Number is 84 Required number = 84 * 56/100 = 47.04

    Practice Next
    ask-question

    Not sure which exam is best for you Talk to our expert

    Get My Free Call