Question

in a two digit number the digit at the unit place is double the digit in the tens place . the number exceed the sum of its digit by 18 . find the number.

Answer 1

Hello,

Let's assume a the digit of tens, 2a the unit's digit

$\overline{a\ 2a}=(a+2a)+18\\ 10a+2a-3a=18\\ 9a=18\\ a=2$

Your number is 24.