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A room has two tube lights, …

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A room has two tube lights, fan and TV. Each tube light draws 40 watt the fan draws 80watt and TV draws 60watt on the average, the tube lights are kept on for 5 hours. The fan for 12 hours and theTV for 8 hours everyday. the rate for electrical energy is 3.50 per kilowatt calculate the cost of electricity used in this room in 30 days month

Posted by Sanu Gupta 6 years ago

CBSE > Class 10 > Science

3 answers

Suryakant Diwakar 6 years ago

Bulb= 5*30*80*60*60watt Fan=80*12*30*60*60watt Tv=60*8*60*60*30watt Total watt=150*80*60*60+80*12*30*60*60+60*30*60*60*8/36*100000 =3*184/10 joule Cost=rate * energy consume = 3.5*3*184/10 =193ruppes

0Thank You

Suryakant Diwakar 6 years ago

193.2 ruppes, hey there is no option for sending image that's why i can't send solution

0Thank You

Aadya Singh ? 6 years ago

193.2 Rs.

1Thank You

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