Colby o bereka kwa khampaning ya difeme kwa lekaleng la go paka. O duelwa $0.20 ka sephuthelwana se sengwe le se sengwe se a se tlatsang. Fa a tlatsa di le 10 kwa tlase ga di le 50 ka ura, o amogela bokae ka didolara, mo letsatsing le le tlwaelegileng la tiro la diura di le robedi? 

Duncan's age eight years ago was two times Adam's age four years ago. If Duncan's age is 60 now, how old will Adam be in 8 years?
Di le lesome kwa tlase ga di le masomelano ke 50-10=<<50-10=40>>40 di sephuthelwana ka ura.
Fa a duelwa $0.20 ka sephuthelwana se se feletseng, fa a tlatsa di le 40 ka ura o amogela 40*$0.20=$<<40*0.20=8>>8 ka ura.
Ka jalo, mo letsatsing le le tlwaelegileng la diura di le robedi, o amogela 8*$8=$<<8*8=64>>64.
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Eight years ago, Duncan was 60-8 = 52 years old, the same as Adam's age four years ago.
Therefore, four years ago, Adam's age was 52/2 =<<52/2=26>>26 years.
Currently, Adam is 26+4 = <<26+4=30>>30 years old.
In 8 years from now, Adam will be 30+8 = <<30+8=38>>38 years old.
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