Question

Calculate the cost of 1kwh of electrical energy when an appliance uses 50 units per week and it costs rs 300

Answer 1

Answer: N *T*D*P/1000

1*7*50*1/1000

RS 3500

Answer 2

Thus the cost of 1 KWh of electrical energy is 6 Rs per unit

Explanation:

Given Cost of 50 unit per week = 300 Rs

Therefore, we know that 1 kwh = 1 unit

Then 50 unit means 50 kwh i.e the cost is 300 Rs

The cost of 1 kwh = 300 / 50 = 6 Rs per unit

Thus the cost of 1 KWh of electrical energy is 6 Rs per unit.

Also learn more

Calculate the electricity bill amount for a month of 30 days ,if the following devices are used as specified:

1) 2 bulbs of 40 w for 6 hours  2) 2 tube lights of 50 w for 8 hours

3) a TV of 120 w for 6 hours.

Given the cost of electricity is 2.50 rps per unit.