Question

The digit at the tens place of a two digit number is three times the digit at the units place. If the digits
are reversed the new number will be 36 less than the original number. Find the number​

Answer 1

Answer:

2

Step-by-step explanation:

Let the unit digit be x.

Then the tens digit will be 3x.

The number = (3x)10 + x.

= 30x + x.

= 31x.

On reversing the digits we get,

Unit digit = 3x.

Tens digit = x.

The number = 10x+3x

= 13x.

By eq.ⁿ :-

31x - 36 = 13x.

31x -13x = 36.

18x = 36.

x = 36/18.

x = 2.