an immersion rod of 1500watt is used to heat up water for 3 hours daily. if the cost of 1 unit of electrical energy is rupees 5.00. then, what would be the cost of consumed electrical energy in 30 days?
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solution
given
100 watt = 1unit
1500watt =15unit
now
in 1 day the cost of electrical energy is =15 ×5.00
= rs 75
in 30 day the cost of electrical energy is =15 ×5.oo×30
= rs 2250
harsh2489:
In my text book this answer is 675
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