Question

You are watching a ouTube live stream currently in 45th minute, say the total Streaming time is 1hr 15mins. Now you have decided to playback the video from 15th minute at 2.5x speed. Approximately what time will you catchup with the live stream?

a)57 Mins
b)1hr 5 Mins
c)The live stream will end before the playback is completed d)1hr 10 Mins​

Answer 1

Answer:

Length = Speed x Time.

When speed is 100%, it takes 19 minutes. So, the length of the video, say, ‘L’ can be expressed as

L = 100 x 19.

Now, speed has become 125%. Length remains the same. So, if the time which will now be taken is, say, ‘t’;

Then, we get the following equation:

100 x 19 = 125 x t

=> t = 19 x 100/125 = 19 x 4/5 = 76/5 = 15.2 mts.

In other words,

15 mts and 12 seconds.