PROBLEM SOLVING (7 items 1: 5 points) Solve the following items. Write your answers and complete solutions on a separate sheet of paper A sold a residential house and lot at an installment price of P6300300 payable in 50 years at P10300 per month to B. B defaulted on the next installment after paying: P720300 P120300 P240300 P360300 P1, 200300 P3300300 P1380300 HP'P'PP'P!' After following the necessary procedures required by law, the contract of sale is properly cancelled. How much cash surrender value is B entitied from A