Answer:
The amount to be paid is €2.88 for the amount of power consumed
Explanation:
The first thing to do here is to convert the power consumption to kilo-watt
1 kilowatt = 1000 watt
x kilowatt = 1200 watt
x = 1200/1000 = 1.2 KW
we now convert this to kilowatt hour by multiplying the number of hours by the number of kilowatt.
That would be 20 * 1.2 = 24 KWh
Now, the charge is 0.12€/kWh
for 24 kWh, we have 24 * 0.12 = €2.88