Roger o ya lebenkeleng go ya go reka kofi.  Kofi e a e rekang ka gale e ja R5 ka pontsho. O ne a tshwanetse go reka kofi e e turu e e leng 20% go feta ka ntlha ya gore kofi e a e ratang e ne e fedile. O swetsa ka go reka kofi e e tlaa mo tshwarelelang beke mme o dirisa pontsho e le nngwe ka letsatsi. O ne a bo a itshenkela donut ka R2.  Go ne ga mo tsena bokae gotlhe?

A pound of almonds costs $10 while a pound of walnuts costs $15. How much more does it cost for a mixture of 1/2 pound almonds and 1/3 pound walnuts than a mixture of 1/5 pound almonds and 1/3 pound walnuts?
Kofi e a e reketseng e ne e le  5*.2=R<<5*.2=1>>1 go feta ka pontsho go na le e a e rekang ka gale
Ka jalo pontsho e ne e ja 5+1=R<<5+1=6>>6
O dirisa 1*7=<<1*7=7>>7 tsa diponto tsa kofi ka beke
Ka jalo o duledile 6*7=R<<6*7=42>>42 mo kofing
Se se raya gore o duledile 42+2=R<<42+2=44>>44 gotlhe
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One-half pound of almonds cost $10/2 = $<<10/2=5>>5.
One-fifth pound of almonds cost $10/5 = $<<10/5=2>>2.
A one-third pound of walnuts costs $15/3 = $<<15/3=5>>5.
So, 1/2 pound almonds and 1/3 pound walnuts cost $5 + $5 = $10.
And 1/5 pound almonds and 1/3 pound walnuts cost $2 + $5 = $7.
Therefore, 1/2 pound almonds and 1/3 pound walnuts cost $10 - $7 = $3 more than a mixture of 1/5 pound almonds and 1/3 pound walnuts.
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