TigerCharlesidn
Answered

IDNStudy.com, ang iyong destinasyon para sa mabilis at eksaktong mga sagot. Magtanong at makakuha ng detalyadong sagot mula sa aming komunidad ng mga eksperto na may kaalaman.

How much will you pay a month at Php 1.50 perr kilowatt-hour, if you leave a 25 watt electric bulb lighted every night from 8:00 pmto 5:00 am?

Sagot :

Jeremiaidn


Given:

               Price of the electricity = P1.5 per kilowatt-hour

               Electric Bulb = device used

               Wattage of the Electric Bulb = 25 watts

               Range of time used = 8: 00 pm - 5: 00 am in 1 month

Find:

          Payment out from the variables.


Solution:

  Step 1:  We get the wattage of the device used.

  Step 2 : We get the number of hours the device was used.

  Step 3: We multiply the wattage with the number of hours used.

  Step 4: We change the unit to kilo-watt hours.

  Step 5: We multiply the result by the price.


Wattage = 25 watts

Number of hours used = 8:00 pm - 5:00 am = 9 hours

( I assumed that 1 month = 30 days)

30 x 9 hours = 270 hours


25 watts x 270 hours = 6, 750 watt-hours

  6, 750 watt-hours x [tex] \frac{1 kW}{1000 watts} [/tex] = [tex] \frac{6, 750 watt-hours (kW)}{1,000watt} [/tex] = 6. 75 kWh or 6. 75 kilo-watt hours


6. 75 x P1.5 = P10. 125


Final Answer:   P10.125


               

Natutuwa kami na ikaw ay bahagi ng aming komunidad. Huwag kalimutang bumalik upang magtanong at magbahagi ng iyong karanasan. Sama-sama tayong magpapaunlad ng kaalaman para sa lahat. Bawat tanong ay may sagot sa IDNStudy.com. Salamat sa pagpili sa amin at sa muling pagkikita.