Question

15 electric lamps of 100 watts each work for 6 hours per
day in a house. A refrigerator of 300 watt works for 10
hours daily. What will be the cost of electricity in a
month, if the rate is 2.50 per unit?
7​

Answer 1

Explanation:

Refer this and solve yourself and mark me as brainlist

Answer 2

Explanation:

Thankyou! mark as brillant