Question

Calculate The electricity bill amount for a month of April if 4 bulbs of 49 Wbfor 5hrs , 4 tube lights 60 w for 5 hours , tv of 100 w for 6 hrs washing machine 400W for 3 hrs are used per day. the cost per unit is ₹1.80

Answer 1

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Answer 2

• Energy Consumed is given by :-

⸻➤E = P × T ,

• Energy Consumed by 4 bulbs ,

⸻➤ 40 × 4 × 5 = 800 Wh.

• Energy Consumed by 4 tube lights ,

⸻➤ 4 × 60 × 5 = 1200Wh.

• Energy Consumed by Tv set .. ,

⸻➤100 × 6 = 600 Wh.

• Energy Consumed by washing machine,

⸻➤400 × 3 = 1200 Wh.

Total Energy Consumed per day

= 800 + 1200 + 600 + 1200 = 3800 Wh.

• Energy Consumed in month of April
• = 3800× 30 = 114000Wh.

- units of Energy Consumed = 114000 / 1000

= 114 kWh = 114 units

• Therefore total bill

= 114 × 1.80 = ₹205.20

__________

Hope it helps you /