Mary le John ba ne ba nyalana mafelo a beke a a fetileng. Go ne go na le dikoloi tsa sephiri di le 20 le dibese di le 12 di eme kwa ntle ga kereke. Morago ga moletlo, bese nngwe le nngwe e ne e rwele batho ba le 35 mme koloi nngwe le nngwe e rwele batho ba le 3. Go ne go na le batho ba le kae mo teng ga kereke?

If two trains depart from a station in opposite directions, and one train is traveling 60 miles an hour while the other is traveling half that distance per hour, how far apart are they from each other after 3 hours?
Go ne go na le dikoloi tsa sephiri di le 20 * batho ba le 3 = <<20*3=60>> batho ba le 60.
Go ne go na le dibese di le 12 * batho ba le 35 = <<12*35=420>> batho ba le 420.
Palo ya batho botlhe ba ba neng ba le mo teng ga kereke e ne e le 60 + 420 = <<60+420=480>> batho ba le 480.
#### 480 

Since one train is traveling half the speed of the train traveling 60 miles an hour, that means that train is traveling 60/2= <<60/2=30>>30 miles an hour.
Therefore, to find the distance traveled each hour in total we add both trains' speed together for a total of 60+30=<<90=90>>90 miles traveled each hour.
This means that in 3 hours they will have traveled 90*3= <<90*3=270>>270 miles away from each other.
#### 270