Law of Contract Offer and Acceptance

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Law of Contract I Tutorial worksheet 3 1. (a) Issue: Whether the contract made over the mistaken price offered by Derek is void or not. Laws: Smith v Hughes (1870-71) LR 6 QB 597 Hartog v Colin & Shields [1939] 3 All ER 566 Given that the seller knew that the buyer is mistaken: (1) Expressed terms mistake: The buyer is mistaken that the offer is an offer to sell OLD oats (i.e. no real agreement) (i.e. expressed terms mistaken by buyer); OR (2) Buyer’s mistaken implication: The buyer understand that the offer is an offer to sell oats (i.e. new/old unspecified); but he is mistaken to think that OLD oats would be provided (i.e. yes agreement, just that the buyer didn’t check in detail before agreeing) (i.e. mistakenly implied that the product would be the of the quality demanded w/o expressly stating its quality in terms) (1)->seller’s responsibility->void (2)->buyer’s responsibility->not void *the courts held that the defendant must be able to prove that the plaintiff must have known the mistake. Centrovincial Estates plc v Merchant Investors Assurance Co Ltd [1983] Com LR 158 -> unilateral mistake would operate if the non-mistaken party knew or should have known the mistake BUT Chwee Kin Keong v Digilandmall.com Pte Ltd [2005]1 SLR 502 -> the degree of the knowledge of the mistake was considered; if aware-> no consensus ad idem If constructive knowledge is sufficient, i.e. the non-mistaken party ought to have known of the other party’s mistake? ->an equitable concept (English and Scottish Mercantile Investment Co Ltd v Brunton [1892] 2 QB 700, 707)->should not be declared void under common law as the objective principle cannot be displaced if there is ONLY pure constructive knowledge However, mere fact of no actual knowledge doesn’t mean that the contract should be performed; or else there would
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