Question

a colour TV rated 150 volte operate 6 hours per day what is the cost of energy to operate it for 30 days @ rupees 5.50 per unit​

Answer 1

Answer:

148.5 rupees

Explanation:

Colour TV is rated 150 W instead of 150 V

Energy consumed in 1day=(150/1000)6 kw/h

=900/1000 unit

now, unit consumed in 30 days= 0.9*30

=27 unit

cost of energy =27*5.50=148.5 rupees