Question

5 electrical appliances are used for 10 hours per day in a home. If two appliances are of 200 W and three appliances are of 400 W then find the number of units consumed by these appliances in a day.

Answer 1

Given:-

Two appliances are of $200W$

Three appliances are of $400W$

Total power of 5 electrical appliances

$=2\times 200W+3\times 400W$

$=200W+1200W=1600W$

$=1.6kW$

Units per day = $1.6\times 10h=16$