Question

Find the probability of the digits of a two digit number is 12.When 36 is added to this number,we got a new number with digits reversed.What is the number?

Answer 1

Hello here is your answer by Sujeet yaduvanshi
Proper Question:-if the digits of a two digit number is 12.When 36 is added to this number,we got a new number with digits reversed.What is the number?


Answer:-

Let to be 10' unit digit number be x
then,

Let to be 1 unit digit number be y

Again,

x+y=12

Again

10x+y+36=10y+x

10x-x+y-10y=-36

9x-9y=-36

9(x-y)=-36

x-y=-4


Now solving the equation for elimination method

x+y=12
x-y=-4

_______
2y=16

y=16/2
y=8

No putting the value of y in another equation

x+y=12
x+8=12

x=12-8

x=4


then,

REQUIRED Number=10x+y

10*4+8

40+8

48



that's all

Answer 2

here is your answer bro hope it helps you! :-)