Step-by-step explanation:
I feel something is off about this question
But going with What you typed
It said
The Number at tens position is twice that at unit
therefore
If the unit number is x
The Tens Number will be= 2x
Now
Grab this concept
If we want to write a 2digit number 49
we can say 10x4 + 9 which is the same as 49.
So
The original number is 10x2x + x
Now
27 is subtracted from this number and the digits are reversed
When the digits are reversed; The Tens position will now be x and Unit will be 2x... This new 2digit number will be 10xX + 2x
So applying what we know
27 - (Original number) = Reversed
27 - (10x2x + x) = 10xX + 2x
27 = 10xX + 2x + (10x2x + x)
27 = 10x +2x + 20x + x
27 = 33x
x = 27/33
x=9/11
The original Number is 10x2x + x
= 10x2(9/11) + 9/11
=10x18/11 + 9/11
180/11 + 9/11
=189/11.
