Question

sum of digits of a two digit no. is 12. Number obtained on interchanging exceeds by 54. Find the numbers......
please help who will help i will mark as brainliest​

Answer 1

Step-by-step explanation:

let the once place digit be x

so, tens place digit be 12- x

so, original no.= 10(12-x) + x

and interchanged no. = 10x + 12- x

according to the question

(10x + 12 - x ) - ( 120 - 10x +x ) = 54

18x - 108 = 54

18x = 54+108

18x = 162

x = 9

so, the no. is 39