Question

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?

• A. 178
• B. 195
• C. 204
• D. 488

Answer 1

The correct option is B 195

Let the required time be x seconds.
More metres, More time (Direct Proportion)
$\therefore 0.128:25::1:x\iff 0.128x=25\times 1$
$x=\frac{25}{0.128}=\frac{25\times 1000}{128}$
$\Rightarrow x=195.31$
$\therefore$ Required time = 195 sec (approximately)