Question

the digit in the tens place of a two digit number is three times that in the unit place if the digits are reversed the new number will be 36 less than the original number

Answer 1

as tens place is three times the unit place
only 3 numbers numbers can be possible 31 , 62 & 93
because the next term ( which is 124 ) will be of three digits
now we can check by trial method
31 is not holding the condition because 31 - 36 is not equal to 13
62 is holding the condition as 62 - 36 is equal to 26 which is reverse of 62
93 is also not holding the condition
so the answer is 62.....