Exercise 3 Directions: Solve the following problems. 1. All of the computers in the ICT room are in use for 5 hours every day on together use 8.3 kW. How much energy is used in a day? 2. How much does it cost to operate a 400 W television for 8 hours if electric anycosts 6.88 pesos per kWh (includes both generation and distribut
1. Since all computers use 8.3kW for 5 hours daily, The energy consumes in a day is given as 8.3kW * 5hours = 41.5kWh
2. 400W television in 8 hours uses 400W * 8hours energy which is equivalent to 3200Wh Converting to kWh gives 3200/1000 = 3.2kWh The cost of running the television in pesos is calculated as 6.88 pesos = 1kWh x pesos = 3.2kWh
Therefore x pesos = 6.88 * 3.2 = 22.016 pesos. It costs 22.02 pesos to run the TV for 8hours
