SOLUTION: If "k" kilos of potatoes cost "P" pesos, find the cost in pesos of "s" grams of potatoes?

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Question 293144: If "k" kilos of potatoes cost "P" pesos, find the cost in pesos of "s" grams of potatoes?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(s*p)/(k*1000)
an example
5 kilos for 10 pesos.
10/5=2 pesos per kilo
p/k price per kilo
we want 500 grams
500/1000*2=1
s/1000*p/k=(s*p)/(k*1000)
500*10/5*1000=1