Mr. Roa borrowed Php250,000 with an exact simple interest of 16%. If he borrowed the money last February 24,2021, on what date is the mature period when he will paybPhp261,506.85?

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?