Nkoko o tsamaya dikilometara di le 3 letsatsi le letsatsi mo tseleng ya gagwe e a e ratang ya go tsamaya, e e akaretsang dikilometara di le 2 tsa go tsamaya mo losing lwa lewatle le kilometara e le 1 ya go tsamaya mo tseleng e e bapileng le tsela. Mo tseleng e e bapileng le tsela, Nkoko o tsamaya ka lobelo lo lo gaupedi go feta fa a le mo losing lwa lewatle. Fa metsotso e le 40 ya mosepele wa gagwe e dirisiwa mo losing lwa lewatle, go mo tsaya nako e e kana kang go fetsa mosepele otlhe wa dikilometara di le 3, ka metsotso?

John cuts down an 80-foot tree.  He can make logs out of 80% of it. He cuts it into 4-foot logs.  From each of those logs, he cuts 5 planks.  He then sells each plank for $1.2.  How much does he make?
Mo losing lwa lewatle, Nkoko o tsamaya ka lobelo lwa dikilometara di le 2 mo metsotsong e le 40, kgotsa 2/40 = 1/20 ya kilometara ka motsotso.
Mo tseleng e e bapileng le tsela, o tsamaya ka lobelo lo lo gaupedi go feta fa a le mo motlhabeng, kgotsa 2 * 1/20 = 1/10 ya kilometara ka motsotso.
Go tsamaya kilometara e le 1 mo tseleng e e bapileng le tsela, go mo tsaya 1/(1/10) = <<1/(1/10)=10>>10 metsotso.
Ka jalo, ka kakaretso, go tsaya Nkoko 40+10 = <<40+10=50>>50 metsotso go tsamaya tsela ya gagwe e a e ratang.
#### 50 

He can use 80*.8=<<80*.8=64>>64 feet of the tree.
That means he can make 64/4=<<64/4=16>>16 logs.
That gives him16*5=<<16*5=80>>80 planks.
So he makes 80*1.2=$<<80*1.2=96>>96.
#### 96