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
116 Answers
a) Pour dĂ©terminer quel manuel acheter, on compare le prix que l'on est prĂȘt Ă  dĂ©bourser pour le manuel usagĂ© et le prix que l'on est prĂȘt Ă  payer pour un manuel neuf.

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

Étant donnĂ© que le manuel usagĂ© coĂ»terait $100, il est plus avantageux d'acheter le manuel usagĂ©, car il est en dessous du prix maximum que l'on est prĂȘt Ă  payer pour un manuel neuf.

Donc, on achÚterait le manuel usagé à $100.

b) Le prix maximum qui ferait prĂ©fĂ©rer acheter le manuel usagĂ© est de $120, car c'est le montant maximum que l'on est prĂȘt Ă  payer pour le manuel usagĂ©.

c) Le prix que l'on paiera pour l'objet est de $100, car c'est le prix demandĂ© par l'ancien Ă©tudiant. Le prix est dĂ©terminĂ© par l'offre et la demande sur le marchĂ©, ainsi que par les limites de prix que l'acheteur est prĂȘt Ă  payer.

d) Les gains Ă  l'Ă©change peuvent ĂȘtre calculĂ©s en soustrayant le prix d'achat du manuel usagĂ© 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 achÚterait 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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