a bulb of 100 watt is operated for 10 hr/day. find average monthly expenditure on electricity bill if rate of electrical energy is 7 rupees per unit?
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the cost of electricity bill for 1 month is and 210 rupees
energy consumed in 1 month =(100/1000)10*30
=30unit
cost =7*30
=210
energy consumed in 1 month =(100/1000)10*30
=30unit
cost =7*30
=210
krish2819:
pls can u solve it
ok
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