5) Luisa is pasting pieces of wallpapers of equal sizes onto her bedroom wall measuring 72 cm by 90 cm. If only whole square pieces are used, and the wall is to be completely covered, what is the largest possible length of each piece? A 17 cm B. 18 cm C. 19 cm D. 20 cm 6) The School Canteen serves chicken and barbecue every 5 days and vegetable lumpia every 4 days. On which days are both dishes served? A. every 16th day C. every 25th day B. every 20th day D. every 40th day 7) A company paints every sixth car it manufactures in red color. Mag wheels are installed every eighth car. Which car will be red in color and have mag wheels replaced at the same time? A. 12th B. 16th C. 24th D. 304 8) Alicia bought some notebooks and paid Php24.00. Susan bought the same kind of notebook and paid Php16.00. What is the greatest amount each notebook can possibly cost? A. Php8.00 B. Php12.00 C. Php15.00 D. Php20.00 9) Jim and Julius practice basketball regularly. Jim plays every 2 days while Julius . plays every 4 days. Every how many days do they play on the same day? A. 2 B. 3 C. 4 D. 5 10) Mr. Romero organized the Mathematics Club of 16 girls and 36 boys. What is the biggest number of members each group can have which would have an equal number of girls and boys? A. 2 B. 4. C.6 D. 8​