Question

Which of the following will be the middle digit of the second highest number among the following five numbers if the positions of the first and the third digits in each number are interchanged?
$432$ $851$ $719$ $643$ $284$

• A. $8$
• B. $3$
• C. $5$
• D. $1$

Answer 1

Answer: (A)

$8$

Original Number	New Number (After changing the first and third digit in each number)
432	234
851	158
719	917
643	346
284	482

The new numbers, arranged in descending order are $\Rightarrow$

$917>482>346>234>158$

Thus, the second highest number is $482$ and the middle digit of second highest number is $8$.