Carla o ntse a itseela faele ya 200 GB. Ka tlwaelo o kgona go itseela 2 GB ka motsotso, mme fa 40% ya faele e setse e itsitswe, Windows e mo pateletsa go simolola komputha sesha go tsenya di-update, tse di tsayang metsotso e le 20. Morago ga moo Carla o tshwanetse go simolola go itseela faele sesha go tswa kwa tshimologong. Go tsaya nako e e kana kang go itseela faele?

Carla is downloading a 200 GB file. Normally she can download 2 GB/minute, but 40% of the way through the download, Windows forces a restart to install updates, which takes 20 minutes. Then Carla has to restart the download from the beginning. How load does it take to download the file?
Sa ntlha bona gore go na le di-gigabytes di le kae mo 40% ya faele: 200 GB * 40% = <<200*40*.01=80>>80 GB
Morago ga moo, arola palo eo ka lobelo la go itseela go bona nako e e tsayang go fitlha Windows e simolola sesha: 80 GB / 2 GB/motsotso = <<80/2=40>>metsotso e le 40
Morago ga moo, bona nako e e tsayang go itseela faele yotlhe morago ga go simolola sesha: 200 GB / 2 GB/motsotso = <<200/2=100>>metsotso e le 100
Morago ga moo, tlhakanya nako e e tsayang go itseela 40% ya faele, go itseela faele yotlhe, le go leta Windows gore e dire di-update: metsotso e le 40 + metsotso e le 100 + metsotso e le 20 = <<40+100+20=160>>metsotso e le 160
#### 160 

First find how many gigabytes are in 40% of the file: 200 GB * 40% = <<200*40*.01=80>>80 GB
Then divide that number by the download rate to find the time until Windows restarts: 80 GB / 2 GB/minute = <<80/2=40>>40 minutes
Then find the time to download the whole file after the restart: 200 GB / 2 GB/minute = <<200/2=100>>100 minutes
Then add the time to download 40% of the file, to download the whole file, and to wait for Windows to update: 40 minutes + 100 minutes + 20 minutes = <<40+100+20=160>>160 minutes
#### 160