Mogwebi o reka dikgetsi tsa korong go tswa kwa molemi ka tlhwatlhwa ya $20 ka kgetsi. Fa go ja $2 go rwala kgetsi nngwe le nngwe go tswa kwa polaseng go ya kwa bobolokelong, mme mogwebi a dira poelo ya $400 morago ga go rekisa dikgetsi tsotlhe ka tlhwatlhwa ya $30 nngwe le nngwe, o rekisitse dikgetsi di le kae?

Mandy owes Benedict $100. They agreed to have monthly interest of 2%. If Mandy was able to pay it after 3 months, how much should she give to Benedict?
Kgetsi nngwe le nngwe ya korong e jele mogwebi $20+$2=$<<20+2=22>>22 (go akaretsa ditshenyegelo tsa go rwala)
Kgetsi nngwe le nngwe ya korong e rekisitswe ka $30 e dira poelo ya $30-$22=$<<30-22=8>>8 mo kgetsing nngwe le nngwe
Ka ge poelo ya $400 e dirilwe, palo yotlhe ya dikgetsi tse di rekisitsweng ke $400/$8=<<400/8=50>>50 dikgetsi
#### 50 

The monthly interest is $100 x 2/100 = $<<100*2/100=2>>2.
After 3 months, the total interest amount to $2 x 3 = $<<2*3=6>>6.
Therefore, Mandy should give Benedict a total of $100 + $6 = $<<100+6=106>>106.
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