Arianna o tlhometse tshingwana ya dithunya tse di nang le mela e le 10 ya dithunya tse 20 mo moleng mongwe le mongwe. Gone jaanong, ke 4/5 fela ya dithunya tse di tlhojetsweng tse di tlhogogileng. Ke dithunya tse kae tse di tlhogogileng mo tshingwaneng ya ga Arianna?

Charmaine will be 16 years old in 12 years. How old will she be 4 years from now?
Arianna o tlhometse dithunya di le 10 x 20 = <<10*20=200>>200 mo tshingwaneng ya gagwe.
Mo go tse 200, go setse di le 200 x 4/5 = <<200*4/5=160>>160 tse di tlhogogileng. 
#### 160 

Charmaine's present age is 16 - 12 = <<16-12=4>>4 years old.
So she will be 4 + 4 = <<4+4=8>>8 years old 4 years from now.
#### 8