Explain why? — task. Maths CBSE Live product, Class 8 (2025-26).

A number is divisible by \(9\) has digits adding up to 27. If one digit is removed, and the new number is no longer divisible by \(9\). Explain why?

Divisibility by \(9\) depends on the sum of the digits; removing a digit changes its sum.
Removing a digit changes the place value, and divisibility by \(9\) depends on place value.
The removed digit was always an odd number, so the number loses divisibility by \(9\).
Removing the digit changes the number of digits, which affects divisibility by \(9\).

Did you find an error?

5. Explain why?