B. Solve the following problems. 13. The basic charge per kilowatt hour of electricity is P3.0964. If a total of 320 kwh was used during a certain month, how much was paid for the basic charge alone? 14. How long does it take a car traveling at a constant rate of 55 kph to travel a distance of 115.5 km? 15. A delivery truck made 3 trips per day in a week and delivered 4.5 tons of sand each time. How many tons of sand was delivered in a week? 16. An astronaut weighs 12.818 kg on the moon. If an object's weight on the moon is about 0.17 times its weight on earth, what is the astronaut's weight on earth? 17. A can contains 3.825 L of lacquer. The lacquer is to be divided equally into con- tainers each of which can hold 212.5 mL How many containers will be used? 18. A fabric 22.75 m long is to be cut into pieces of length 3.25 m each. How many pieces can be cut from the fabric? 19. If the selling rate per dollar is P 45.75, how many dollars can be bought with P54,900? 20. A deposit of 18,735.50 gained an interest of P 393.0975 after a year. What percent of the deposit is the interest? 21. All the students in the school were weighed. Their average weight was 31.4 kg and their total weight was 21 603.2 kg. How many students are in the school? 22. The daily wage of a laborer is P 423.25. At the end of the month, he earned #11,004.50. How many days did he work? TEN COLORS ES 23. A truck load of cargoes weighs 22.68 metric tons. If each piece of cargo weighs 43.2 kg, how many pieces of cargo are there in the load? 24. How many pieces of 250 cm long cable wire can be cut from a roll of wire 75.75 m long? How much wire is left