An industrial loom weaves 0.128 m of cloth per second. Approximately how many seconds are needed to weave 25 m of cloth?

Aptitude Chain Rule Difficulty: Easy
Choose an option
  • A
    195 s
  • B
    196 s
  • C
    200 s
  • D
    205 s

Answer

Correct Answer: 195 s

Explanation

Given data

  • Speed = 0.128 m/s
  • Distance (cloth length) = 25 m

Concept / Approach

  • Time = Distance / Speed, keeping units consistent (metres, seconds).

Step-by-step calculation

t = 25 / 0.128 = 195.3125 sApproximately = 195 s (nearest second)

Verification

0.128 × 195 ≈ 24.96 m (very close to 25 m); rounding is appropriate for 'approximately'.

Common pitfalls

  • Inverting the fraction (using 0.128/25).
  • Converting to minutes inadvertently (units must remain seconds).

Final Answer

195 s

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