Question

Raj can upload $n$ videos of approximately $4.5$ gigabytes in size each on cloud between $5:00$ PM and $9:00$ PM daily, with speed of $12$ megabytes per second. What is the maximum value of $n$ per day? ($1$ gigabyte $=1024$ megabytes)

• A. $2$
• B. $37$
• C. $38$
• D. $682$

Answer 1

Answer: (B)

$37$

To upload a video of $4.5$ GB with a speed of $12MB/sec$, it will take

$\frac{4.5\times 1024MB}{12MB/sec}=384sec$.

Now he has $4$ hours from $5$ PM to $9$ PM.

$1$ hour is equal to $3600$ secs.

Hence, he will upload $\frac{4\times 3600sec}{384sec}=37.5$ videos, or more clearly $37$ videos.

Therefore in a day he can upload a maximum of $37$ videos.