Tobias o rekile pizza e tona e nang le dikarolwana di le 60. O jele 2/5 ya dikarolwana mo letsatsing la ntlha, a bo a ja di le 10 mo letsatsing la bobedi, mme a bo a ja 7/13 ya dikarolwana tse di setseng mo letsatsing la boraro.  O jele dikarolwana di le kae tsa pizza go fitlha jaanong? 

An electronics seller bought 5 phones for $700 each and gives the seller $4000 in dollar bills. How much will the seller give back in change?
Mo letsatsing la ntlha, Tobias o jele 2/5*60 = <<2/5*60=24>>24 ya dikarolwana tsa pizza. 
Mo letsatsing la bobedi, Tobias o jele dikarolwana tse dingwe di le 10 tsa pizza, go dira palogotlhe ya dikarolwana di le 24+10 = <<24+10=34>>34. 
Palo ya dikarolwana tsa pizza tse di setseng ke 60-34 = <<60-34=26>>26
Mo letsatsing la boraro, Tobias o jele 7/13*26 = <<7/13*26=14>>14 tsa dikarolwana tsa pizza.
Go fitlha jaanong, o jele dikarolwana di le 14+34 = <<14+34=48>>48 tsa pizza e a e rekileng.
#### 48

The seller bought the 5 phones for $700 * 5 = $<<700*5=3500>>3500.
So the seller gives back $4000-$3500 = $<<4000-3500=500>>500.
#### 500