Question

A number is 27 more than the number obtained by reversing its digits. If its unit's and ten's digit are x and y respectively, the linear equation representing the above statement is $a-b=3$ For the number $ba$.

• A. True
• B. False

Answer 1

The correct option is B False

The Number is $yx$

It can be written as $10y+x-(10x+y)=27\Rightarrow 9y-9x=27\Rightarrow y-x=3$

So for the number $ba$

$b-a=3$