Mathematical Logic

Mathematical Logic

In a class, teacher was giving a math word problems.

TEACHER:
"You go to the supermarket to buy flour., Where there are packs of 1 kg of flour at a price of Rp. 5.000, - Also there is a packing of 5 kg of flour at a price of 20,000, - Packaging which should you buy so you can save and profit? "

ROBERT:
"We should buy packs of 1 kg at a price of Rp. 5.000, -"

TEACHER:
"Well, too bad. Answer? Wrong Robert. Should we buy flour in 5 kg packs for Rp. 20,000, -"

ROBERT:
"But the teacher was not at home ... Mom just needs a bit of flour? 1 kg I think is enough. Fact, my mother just throw one bag of flour that has been damaged due to long unused. Would not it even more wasteful and" waste of money " alone? "

TEACHER:
"Not Robert. Correct answer is we have to buy 5 kg of flour with packaging for Rp. 20.000, - because that's the answer should be."

ROBERT:
"But Mom ... to what to buy as much flour it will eventually if not used?"

TEACHER:
"Robert ... that's the correct answer. You do not argue."

ROBERT:
"But Mom ... I think the correct answer is ..."

TEACHER:
"Come on Robert! Come now follow the teacher facing the Headmaster. Your behavior is very bad today! Not you supposed to be defiant in the classroom."

(The Robert in the story above is Robert Kiyosaki, as they experienced themselves. Figures have been adjusted.)