If the largest 4-digit number is subtracted from the smallest 6-digit number, then the remainder will be:

Correct option is A

Given:

Largest 4-digit number = 9999
Smallest 6-digit number = 100000

Formula Used:

Remainder = Smallest 6-digit number - Largest 4-digit number

Solution:

Remainder = 100000 - 9999 = 90001

Hence, the remainder is 90001.