Activity 3. Posttest: Answer the following problems. (5 points each) 1. Jessa buys three bananas for P25.00. How much does she have to pay for a dozen of these bananas? 2. A typist can finish 4 pages in 6 minutes. How long will it take him to finish 18 pages? 3. A menu which serves 5 people requires 3 cups of flour. How many cups of flour are needed for the menu to serve 20 people? 4. To finish a certain job in 8 days, 6 workers are needed. If it is required to finish the same job in 2 days advance, how many workers must work? 5. A supply of food lasts for a week for 20 families. How long would the supply last if 3 more families must be supplied?​