Pri Sch Maths Qns That 99/100 Uni Students Got Wrong
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damn tricky qn.
Young man gains $79 bucks + $18 in terms of the asset of item.
Mr. Wang made a loss of $97 in terms of cash.
Poor Mr. Wang -
i thot is 79+21 ?
Cuz the selling price was $21, so he lost his earning also what.. -
its a freaking pri sch question
Mr wang lost no money. The money was from the other shop.
He lost an item though, so if u say he had a lost, then its 18 bucks cost price. -
why cant u put it as mr wang nvr lose the $18 cost price object? because the man "paid" for it. so after selling it..he had $21(assuming he had $0 when the man bought the object). after tt he had to give back $100, so he lost only $79.
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tanjun's answer is correct. Please read my explanations on the bottom of page 1 and the middle of page 2 for clarifications
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on second thoughts the answer could be $76...cuz the $3 is profit from the item.
"Originally posted by eagle:
actually on 2nd thoughts...
suppose initial got $1
Cheat give $100
Account: $101
Return to cheat $79
left $22
Then return to shop $100
Left $-78
so total loss is $79
then $18 loss also
so $97"
the reason why i dun agree with ur answer..is because...the man has already paid for the $21 object. so he dosent make a loss. the shopkeeper merely exchanged the $100 fake note for $100 real money change. so in the process he gains $21. after that he has to pay back the other shop $100. so his loss is $79. but he profits $3 from the item. so actual loss is only $76...
since gt no confirmed answer im still sticking with my answer^^ -
no la, he didn't profit from it at all. He didn't gain $21 from exchanging the note; he gained $100 from it. So when he return $100, he loses that $100 again.Originally posted by absol:the reason why i dun agree with ur answer..is because...the man has already paid for the $21 object. so he dosent make a loss. the shopkeeper merely exchanged the $100 fake note for $100 real money change. so in the process he gains $21. after that he has to pay back the other shop $100. so his loss is $79. but he profits $3 from the item. so actual loss is only $76...
since gt no confirmed answer im still sticking with my answer^^
i.e.
loss/gain to/from nearby shop = $0
loss to faker = $79 (cash) + $18 (cost price)
Of course, we are talking about hard cash, not opportunity cost. -
eh sry..jus thought over it when showering...ure right...cuz i overlooked that the shopkeeper paid $18 for the item in the first place...so he profit $3 from the deal..after which he paid $100 and made a loss of $97...yay
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