What is the remainder when 69 is divided by 30?

Q. 12. A polynomial leaves remainder 5 when divided by (x-3). It also leaves remainder 7 when divided by (x-4) . Find remainder when it is divided by (x-3) (x-4).

Q.

What is the remainder when 69 is divided by 30?

Q. When N is divided by 4, the remainder is 3. What is the remainder when 2N is divided by 4?

Q. When a natural number $n$ is divided by $4$, the remainder is $3$. What is the remainder when $2n$ is divided by $4$?

Q. Remainder when $2^{30}{3}^{30}$ is divided by 7 is