Ana and Jose are business partners. Ana borrowed P12,000 from Jose to be paid on March 7, 2020. On the other hand, Jose has a business seminar to Boracay on the same date and borrowed Ana’s car for three days. Unfortunately, Ana failed to pay on the agreed date. Can Jose refuse to return the car on the stipulated date because of the reason that Ana fails to pay him the P12, 000 amount she borrowed? Explain and give the article which this case in under.

Ganda borrowed 30, 000 to Pogi to finance her audition in beauty pageant in Singapore that is payable within 6 months. Later, Ganda promise to pay Pogi after winning the contest. Can Pogi collect the payment even if Ganda did not won the contest yet? Explain and give the article which this case in under.