Question

The digits in the terms place of a two digit number is three times that in unit place. If the Digits are reversed, The new no. will be 36 less than the original no.​

Answer 1

let the digit in the one's place be x

Then, the digit in the tens place = 3x

The no.formed is = 10 x 3x + x= 31x

If the digits are reversed, the new number formed is 10 X x + 3x = 13x

13x = 31x - 36

x = 2

The original no.= 31 X 2 = 62