16-17. What is 20% of 90
18-19. 12 out of 30 students studied Mathematics. What percent studied
Mathematics?
20-21. In an electronics store a Php 75.00 earphone is labeled. Save 15 percent. What is the
sale price of the earphone?
22-23 Sir Gab borrowed 3600 to finance his printer repair at a rate of 6.25 % for 4.75 years.
How much interest did he pay ?
24-25. A computer salesman eans a 5.5 % commission on each sale. If he sells 5 computers in
one week for a total of Php 15 500 How much commission does he
earn?​