This question is based on the five, three-digit numbers given below.
(Left) 307 485 194 237 937 (Right)
(Example: 697 – First digit = 6, second digit = 9 and third digit = 7)
(Note: All operations to be done from left to right.)
What will be the resultant if the third digit of the highest number is subtracted from the first digit of the lowest number?

Given: (Left) 307 485 194 237 937 (Right)
Highest number = 937

Lowest number = 194

Third digit of highest number (937) = 7

First digit of lowest number (194) = 1

The third digit of the highest number is subtracted from the first digit of the lowest number:

= 1 − 7 = - 6

So, - 6 will be the resultant if the third digit of the highest number is subtracted from the first digit of the lowest number.

Thus, correct option is (a).