James o rata go thuma mme o tshwanetse go thuma letsha le le bophara jwa dikilometara di le 32.  O kgona go thuma ka lobelo lwa dikilometara di le 3.2 ka ura.  O thuma 60% ya sekgala.  Morago ga moo, o ema kwa setlhaketlhakeng mme a ikhutse ka nako e e lekanang le sephatlo sa nako e a e feditse a thuma.  Morago ga moo o fetsa sekgala se se setseng a ntse a tsamaya ka sephatlo sa lobelo.  Go mo tsere nako e e kana kang go kgabaganya letsha?

James gets 10 new CDs.  Each CD cost $15.  He gets them for 40% off.  He decides he doesn't like 5 of them and sells them for 40. How much money was he out?
O thumile 32*.6=<<20*.6=12>>19.2 dikilometara.
Seo se mo tsere 19.2/3.2=<<12/2=6>>6 diura.
Ka jalo o ikhuditse ka 6/2=<<6/2=3>>3 diura.
Morago ga moo o ne a thuma dikilometara tse di setseng tse 32-19.2=<<20-12=8>>12.8.
Lobelo lwa gagwe e ne e le 3.2/2=<<2/2=1>>1.6 km ka ura.
Ka jalo go mo tsere 12.8/1.6=<<8/1=8>>8 diura.
Ka jalo ka kakaretso, o tsere 6+3+8=<<6+3+8=17>>17 diura.
#### 17 

He got a 15*.4=$<<15*.4=6>>6 discount on each CD
That means each CD cost 15-6=$<<15-6=9>>9
So he paid 10*9=$<<10*9=90>>90
That means he was out 90-40=$<<90-40=50>>50
#### 50