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


    Question

    Find the difference between sum of digits of LCM and

    HCF of 24, 36 and 90.
    A 3 Correct Answer Incorrect Answer
    B 6 Correct Answer Incorrect Answer
    C 7 Correct Answer Incorrect Answer
    D 8 Correct Answer Incorrect Answer

    Solution

    24 = 2³ × 3 36 = 2² × 3² And 90 = 2 × 3² × 5 So, HCF = 2 × 3 = 6 So, sum of digits of HCF = 6 = 6 And LCM = 2³ × 3² × 5 = 360 And sum of digits of LCM = 3 + 6 + 0 = 9 So, required difference = 9 - 6 = 3 Hence, option a.

    Practice Next
    ask-question