Question

a number consist of 2 digits the digit in tens place is twice unit place the no. formed by reversing the digit is 27 less than original no. find the original​

Answer 1

63

Explanation:

If x units, then 2x tens

Number is: 2x(10)+x = 21x

Reversing digits:

2x units and x tens,

Number is: x(10)+2x = 12x

21x - 12x = 27

9x = 27

x = 27/9 = 3

Original number: 21x = 21(3) = 63