Question

number and the number obtained on reversing digits is 396, find the number
. In a 2-digit number, ten's digit is twice the unit's digit. If the difference of the number obtained by reversing the
digits and the original number is 18, find the number.
5 7 6​

Answer 1

Step-by-step explanation:

Let the number be 100(2x)+10y+x=201x+10y

sum of digits =2x+y+x=18

=3x+y=18........(i)

Digits are Reversed

=100(x)+10y+2x=102x+10y

According to question,

201x+10y−102x−10y=396

99x=396

x=4

Put, x=4 in (i)

3×4+y=18

y=6