A video editor takes 5 minutes to edit 1 minute of footage. If the video is 30 minutes long and editing speed improves by 25%, total time required now?
Correct answer: C. 112.5 min
- A. 100 min
- B. 110 min
- C. 112.5 min
- D. 120 min
Explanation
Initially, the editor takes 5 minutes to edit 1 minute of footage, which translates to 150 minutes for a 30-minute video. With a 25% improvement in editing speed, the time required per minute of footage decreases by 25%, resulting in an effective editing time of 3.75 minutes per minute of footage (5 minutes * 0.75). Multiplying this new time per minute by 30 minutes of footage gives a total of 112.5 minutes, making Option C the correct choice. Options A (100 min) and B (110 min) underestimate the required time after the speed improvement, while Option D (120 min) fails to account for the speed increase.
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