Question

    The sum of digits of a two-digit number is 10. When the digits are reversed, the number decreases by 63. Find the changed number

    A 92 Correct Answer Incorrect Answer
    B 29 Correct Answer Incorrect Answer
    C 28 Correct Answer Incorrect Answer
    D 82 Correct Answer Incorrect Answer

    Solution

    Let the unit digit =x and tens =y 10y + x After reversed digit =10x+y ATQ- 10x+y-10y-x =63 9x -9y =63. x-y =7 x + y =11 x =9, y =2. Original number =92 Change number =29.

    Practice Next

    Relevant for Exams:

    ×
    ×