in two digit number, the digit at the units place is double the the digit in the tens place - Maths - Playing with Numbers

Question

in two digit number, the digit at the units place is double the
the digit in the tens place the number exceeds the the sum of its
digit by 18 find the number

Abhinav Verma · Accepted Answer

Let the digit at tens place be x
Units Place = 2x
Original number = 10(x) + 2x = 12x
Interchanged number = 10(2x) + x = 21x
21x - 12x = 18
9x = 18
x = 2
Original number = 10*2 + 2*2 = 24

in two digit number, the digit at the units place is double the the digit in the tens place. the number exceeds the the sum of its digit by 18 .find the number.