A colour TV rated 150 w operates 6 hours per day what is the cost of e

1.	A colour TV rated 150 w operates 6 hours per day what is the cost of energy to create it for 30 days at rupees 5.50per unit
Answer» The mathematical relationship between one electrical unit and electrical watt is; 1 unit = 1kilo-watt [1 unit = 1000 watt] So, ACCORDING to the data MENTIONED in the question,the total amount of used electricity in one day is; =150×6 = 900 w And the total amount of used electricity in one month or 30 days will be; =90×30 =2700 w So, 1000 w = 1 unit 1 w = 1/1000 unit 2700w = 2700/1000 unit = 2.7 unit Now the total cost will be; = (2.7×5.5)₹ = ₹ 14.85 (answer)

A colour TV rated 150 w operates 6 hours per day what is the cost of energy to create it for 30 days at rupees 5.50per unit

Answer»

The mathematical relationship between one electrical unit and electrical watt is;

1 unit = 1kilo-watt

[1 unit = 1000 watt]

So, ACCORDING to the data MENTIONED in the question,the total amount of used electricity in one day is;

=150×6

= 900 w

And the total amount of used electricity in one month or 30 days will be;

=90×30

=2700 w

So,

1000 w = 1 unit

1 w = 1/1000 unit

2700w = 2700/1000 unit = 2.7 unit

Now the total cost will be;

= (2.7×5.5)₹

= ₹ 14.85 (answer)