127. “Under conditions of perfect competition, the price at which any given product will be supplied and purchased is the price that will result in the supply and the demand being equal.” This statement is known as the_________________?

A. Law of diminishing return
B. Law of supply
C. Law of demand
D. Law of supply and demand
✅ The correct answer is option D.

129. A factory operator bought a diesel generator set for P 10,000.00 and agreed to pay the dealer uniform sum at the end of each year for 5 years at 8% interest compounded annually, that the final payment will cancel the debt for principal and interest. What is the annual payment ?

A. P 2,500.57
B. P 2,544.45
C. P 2,540.56
D. P 2,504.57
✅ The correct answer is option D.