What is the largest 5-digit number exactly divisible by 999?

Correct option is A

Concept Used:

The largest 5-digit number is 99999.
To find the largest 5-digit number divisible by 999, we divide 99999 by 999 and take the integer part of the quotient.

Solution:

Divide 99999 by 999:
99999 ÷ 999 = 100.099
The integer part of the quotient is 100.
Multiply the integer part by 999 to get the largest 5-digit number divisible by 999:
100 × 999 = 99900
Thus, the largest 5-digit number exactly divisible by 999 is 99900.