john mark has some Php 50 and Php 20 biils.The total amount of these bills is less than Php2,500. Suppose there are 35 Php 50-bills which of the following is true about the
number of Php 20-bills?
I. The number of Php 20 bills is less than the number of Php 50-bills
II.The number of Php 20-bills cold not be more than the number of Php 50-bills.
III.The number of Php 20-bills is equal to the number of Php 50-bills.
a.I and II b.I and III c.I and III d.I,II,and III​