Question

any electric motors of 1.5 khw and two coolers of 500 w each operate for 4 hours a day. if energy cost rupees 3.60 per khw, calculate the weekly bill ​

Answer 1

Answer:

₹252

Solution:

Power of motor=1.5Kwh

Power consumed by motor in 4 hours=1.5×4=6kwh

Power of both coolers=500×2=1000w=1kw

Power consumed by coolers in 4 hours=1×4=4kwh

Total power consumed in 4 hours=6+4kwh=10kwh

Power consumed weekly =10kwh×7=70kwh

Cost of energy consumed =70×3.60=₹252

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