Question

If in each number $1$ is subtracted from the middle digit and then the first and the second digits are interchanged, then which number will be third, arranged in descending order?
$389$ $476$ $635$ $847$ $568$

• A. $389$
• B. $568$
• C. $635$
• D. $847$

Answer 1

The correct option is B $568$

According to the question if 1 is subtracted from the middle digit then numbers are
$379,466,625,837,558$
Then the first and the second digits are interchanged

$739,646,265,387,558$

Arrange them in descending order
$739,646,558,387,265$
then third number is $558$ .
Then original number is $568$.

option B