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

Let the required time be x seconds
Then,
More metres, More time (direct proportion)
$$\begin{array}{rl}& \therefore 0.128:25::1:x\\ & \iff x=\frac{25}{0.128}\\ & \iff x=\frac{25\times 1000}{128}\\ & \iff x=195.31\end{array}$$`
∴ Required time =195 seconds (approx)