The Internet connection speed is 225 bits per second, how long it will take to download a 32 megabyte file.

First, you need to convert the file size to bits.
Let’s remember the units of measurement of information:
1 megabyte (MB) = 1024 kilobytes (KB)
1 KB = 1024 bytes
1 byte = 8 bits
We get: 32 MB = 32 * 1024 * 1024 * 8 = 268435456 bits

We divide the amount of information by the connection speed:
268435456/255 = 1052688.06 seconds
1052688.06 / 60 = 17544.8 minutes
17544.8 / 60 = 292.41 hours
292.41 / 24 = 12.18 days

or otherwise: 12 days. 4 hours 24 minutes 48 sec.