Question

A and B are both four digit numbers A>B and one is obtained from the other by reversing the digits.

Then the value of B if
Α+Β/5 = Β−1/2

Answer 1

Answer:

I think option A , is right .

Check options

When you reverse the digits first digit becomes last and last first . so When you add them first and last digit adds . And subtract first and last substrates .

Now you are dividing by 5 , so first and last digit sum should be 5 or 10 . To divisible fully if b - 1 is divisible by two .

Or else a integer can't be equal to a non integer .

Option 2 + 3 = 5 and 3-1 = 2

No else option sum of first and last is divisible by 5

Now only option 2 is in doubt since 2-1 = 1 which is not divisible by 2 , but remainder will be 2+1 = 3

by dividing by 5 . So it is also not our option

Answer 2

Answer:

yeah what he said was right!