Question

The tens digit of a two digit number is twice its one digit. If the difference between the number and the number obtained by interchanging its digit is 18, find the number.​

Answer 1

Answer:

The no. is 42

Step-by-step explanation:

Original num     Tens                  Ones

Digit                      2x                       x

Value                10(2x)                      x

total Value     20x + x = 21x

Interchange digit num   Ten      One

Digit                                     x         2x

Value                                  10x       2x

Total Value          10x + 2x = 12x

Given difference = 18

=>21x - 18 = 12x

=>21x - 12x = 18

=>9x = 18

x = 2

2x = 4

No. = 42

MARK AS BRAINLIEST