Question

You are considering purchasing a used textbook from a former student. The price of a new manual is $130. The former student offers you his used textbook for ''$100 or best offer''. You are willing to pay up to $120 for the used manual and up to $140 for a new manual. Answer the following questions and give detailed explanations for your answers. a) Which textbook will you purchase? b) What is the maximum price that will make you prefer to buy the used manual? c) What price will you pay for the item? What determines the price? d) What will be the gains from the exchange? (Give a lower bound)

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Answer to a math question You are considering purchasing a used textbook from a former student. The price of a new manual is $130. The former student offers you his used textbook for ''$100 or best offer''. You are willing to pay up to $120 for the used manual and up to $140 for a new manual. Answer the following questions and give detailed explanations for your answers. a) Which textbook will you purchase? b) What is the maximum price that will make you prefer to buy the used manual? c) What price will you pay for the item? What determines the price? d) What will be the gains from the exchange? (Give a lower bound)

Expert avatar
Cristian
4.7
119 Answers
a) Pour déterminer quel manuel acheter, on compare le prix que l'on est prêt à débourser pour le manuel usagé et le prix que l'on est prêt à payer pour un manuel neuf.

Prix maximum pour manuel usagé : $120
Prix maximum pour manuel neuf : $140

Étant donné que le manuel usagé coûterait $100, il est plus avantageux d'acheter le manuel usagé, car il est en dessous du prix maximum que l'on est prêt à payer pour un manuel neuf.

Donc, on achèterait le manuel usagé à $100.

b) Le prix maximum qui ferait préférer acheter le manuel usagé est de $120, car c'est le montant maximum que l'on est prêt à payer pour le manuel usagé.

c) Le prix que l'on paiera pour l'objet est de $100, car c'est le prix demandé par l'ancien étudiant. Le prix est déterminé par l'offre et la demande sur le marché, ainsi que par les limites de prix que l'acheteur est prêt à payer.

d) Les gains à l'échange peuvent être calculés en soustrayant le prix d'achat du manuel usagé du prix du manuel neuf.

Gain à l'échange = Prix manuel neuf - Prix manuel usagé
Gain à l'échange = $140 - $100
Gain à l'échange = $40

Donc, les gains à l'échange seront d'au moins $40.

\textbf{Answer:}
a) On achèterait le manuel usagé.
b) Le prix maximum pour le manuel usagé est de $120.
c) On paiera pour le manuel usagé est de $100. Le prix est déterminé par l'offre et la demande.
d) Les gains à l'échange sont d'au moins $40.

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