Question

please give a step by step solution​

Answer 1

Answer:

74 (or 47)

Step-by-step explanation:

Let's take,

The ones digit number be 'x-3' .

So, the tens digit number will be 'x' .

Therefore, the two digit number will be

= 10×x + x-3

= 11x-3

Now, when we reverse it, it will become

=10×( x-3) +x

=11x-30

A/Q,

=>11x-3+11x-30=121

=>22x-33=121

=> 22x=121+33

=>22x=154

=>x=154/22

=> x= 7

Therefore, the two digit number will be

=10x+ x-3

=10×7+7-3

=70+4

=74

HOPE IT HELPS YOU.