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Learning Task 2: Read, analyze and solve the given problem below on a sheet of paper.

In a classroom, there are five 20-watt fluorescent lamps and four 50 watt electric fans operating for 10 hours in a regular school day.

1. How many kilowatt-hours are consumed by the five 20-watt fluorescent lamps each school day?

2. How many kilowatt-hours are consumed by the four 50-watt electric fans each school?

3. How many kilowatt-hours are consumed for a day?

4. How many kilowatt-hours are consumed for 3 days?

5. How many kilowatt-hours are consumed in one school
week?

WITH SOLUTION​

Sagot :

Keltantheboigo

Answer:

  1. 1 kWh
  2. 2 kWh
  3. 72 kWh
  4. 216 kWh
  5. 504 kWh

Step-by-step explanation:

  1. (20-watt×5)×10 hours/1000= 1kWh
  2. (50-watt×4)×10 hours=2000/1000=2 kWh
  3. 1 kWh+2 kWh=3 kWh×24=72 kWh
  4. 72 kWh×3=216 kWh
  5. 72kWh×7= 504 kWh

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