Question

If one unit of electricity is equal to using 1000 Watt (1 Kilowatt) for one hour, then what is the cost of using a 750 Watt electric iron for 4 hours each day for 30 days, the cost of electricity is Rs.5 per unit.
a) Rs.450 b) Rs.90 c) Rs.500 d) Rs. 430

Answer 1

B 90 I think that you

Answer 2

Answer:450₹

Explanation:

1000 watt= 5₹per/1h

1watt= 5/1000₹=0.005₹per/1h

750watt= 750×0.005=3.75₹ per/1h

If you use the iron 4hours a day for 30 days than it costs-

3.75×4×30=450₹,

:. The answer is 450₹