2. Maria and Mario entered into a verbal contract whereby Maria agreed to sell to Mario his only parcel of land for P20,000, and Mario agreed to buy at the aforementioned price. Mario went to the bank, withdrew the necessary amount, and returned to Maria for the consummation of the contract. Maria, however, had changed his mind and refused to go through with the sale. Is the verbal agreement valid? Explain.

3. Peping promised to give his grandson a car if the latter will pass the board examinations. When his grandson passed the said examinations, Peping refused to give the car on the ground that the condition was a purely potestative one. Is Peping correct? Explain.

JURISDICTION: PHILIPPINES