Darren o ikaeletse go itshidila mmele sebaka sa beke yotlhe.  O dira di-pushup tse 100, di-squat tse 50, le go tsholetsa di-dumbbell ka makgetlo a le 20 mo letsatsing la ntlha.  Mo letsatsing la bobedi, o dira di-pushup tse di fetang tsa letsatsi la ntlha ka 20, di-squat tse di kwa fokotsegileng ka 10, mme a oketsa palo ya go tsholetsa di-dumbbell gabedi.  Ke palogotlhe ya eng ya dilo tse a di dirileng mo malatsing a mabedi?

Will buys 15 oranges. When he gets home, he asks his 2 sons to wash as many oranges as they are years old. The oldest son is 8 years old, the youngest is half as old as the oldest. How many oranges are left unwashed?
Palogotlhe ya dilo tse a di dirileng mo letsatsing la ntlha ke 100+50+20 = <<100+50+20=170>>170
Mo letsatsing la bobedi, o dirile di-pushup tse 100+20 = <<100+20=120>>120
Gape o dirile di-squat tse 50-10 = <<50-10=40>>40 mo letsatsing la bobedi
Mo go tsa go tsholetsa di-dumbbell, o okeditse palo ya letsatsi la ntlha gabedi, tse di neng di nna 2*20 = <<2*20=40>>40
Palogotlhe ya dilo tse tharo tse a di dirileng mo letsatsing la bobedi ke 40+40+120 = <<40+40+120=200>>200
Mo malatsing a mabedi, palogotlhe ya dilo tsotlhe tse tharo tse a di dirileng ke 200+170 = <<200+170=370>>370
#### 370

The older son washes 8 oranges, so the younger son washes 8 / 2 = <<8/2=4>>4 oranges.
Together they wash 8 oranges + 4 oranges =<<8+4=12>>12 oranges
There are 15 oranges - 12 oranges = <<15-12=3>>3 oranges left unwashed.
#### 3