CHAPTER 9—DEFECTIVE AGREEMENTS Key
1. Mark, a civil engineer, entered into a contract with David. As per the contract, Mark agreed to design and
build a house for David for a specified fee. Mark provided David with an estimation of the total cost and the
contract was mutually agreed upon. However, during construction, when Mark increased the price stating a
miscalculation on his part, David refused to pay the amount. This scenario is an example of a _____ mistake.
2. Allen enters into a contract with Joe to sell his car. However by mistake, he undervalues his car. Though the
actual value of the car is $6000, he sells it to Joe for $3000. During the purchase, Joe is aware of the actual
value but does not communicate this fact to Allen. Which of the following is likely to be true in such a
scenario?
3. James orally entered into a contract to sell 100 tonnes of cotton to Bryan for a price of $1000 per ton. Both
parties subsequently signed a written contract. However, the written contract mistakenly stated the price of
cotton as $1100 per ton. While signing, Bryan failed to notice this mistake. Which of the following contract
terms will govern in such a scenario?
4. Which of the following is true regarding parties who make mutual mistakes of law?