A typical YouTube SD video with 480p quality has a bit rate of 1200 kbps (kilo bits per second). Mr X's internet connection has speed of 512 kbps.

If Mr. X decides to watch a 60 minute video on YouTube, find minimum time in seconds he should allow buffering so that he can watch the video uninterrupted.

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TopNewestmy result is 1 hour and 21 minutes – Phạm Duy · 3 years, 2 months ago

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– Vikram Pandya · 3 years, 2 months ago

Sorry there was a minor calculation mistake in my answer. Your answer is correct :)Log in to reply

[ Video Bit rate * Video Length in Seconds / Download Speed ] x [1 - (Download Speed/Video Bit rate)]

i.e. Initial Buffering required in Seconds = VB * VL / DS * (1 - DS/VB)

i.e. Initial Buffering required = Time required to download entire video - Video Duration – Vikram Pandya · 3 years, 2 months ago

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Its 34 minutes and 24 seconds. – Vishal Sharma · 3 years, 2 months ago

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– Vikram Pandya · 3 years, 2 months ago

Corrected Solver file https://drive.google.com/file/d/0B69AAlUY9P1xTFZQdDlHYlNrWmM/edit?usp=sharing without using formulaLog in to reply

– Vikram Pandya · 3 years, 2 months ago

Pham Duy now has the correct answer.Log in to reply

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– Tan Li Xuan · 3 years, 2 months ago

Is it 1536 seconds?Log in to reply