The divisor is 25 times of the quotient and 5 times the remainder. If the quotient is 16, the dividend is-

Answer: Option B

Dividend = (divisor × quotient) + remainder
According to the question
$$\begin{array}{rl}& \text{Divisor :}\\ & \Rightarrow \text{16}\times \text{25 = 5}\times \text{remainder}\\ & \Rightarrow \text{R = }\frac{1}{5}\times 16\times 25\\ & \text{Dividend :}\\ & \text{ = }\left[\left(\text{16}\times \text{25}\right)\times 16\right]+\frac{1}{5}\times 16\times 25\\ & =\left[16\times 25\times 16\right]+80\\ & =6480\end{array}$$