An industrial loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 25 metres of cloth?

Answer: Option B

Le the required time be x seconds.
More metres, More time (Direct Proportion)
$$\begin{array}{rl}& \therefore 0.128:25::1:x\\ & \Rightarrow 0.128x=25\times 1\\ & x=\frac{25}{0.128}=\frac{25\times 1000}{128}\\ & \Rightarrow x=195.31\end{array}$$
∴ Required time = 195 sec (approximately)