Calculate the cost of operating 5 bulbs of 100 watts each for 8 hours and an iron of 1.5 kWh for 2 hours at the rate of rs 5.40. Per unit
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energy used by 5 bulbs=5×100
; ;; =500=0.5kwh
energy used by iron =1.5kwh
rate for 1kwh =5.40
rate for 2kwh=5.40×2=10.8 rupees
; ;; =500=0.5kwh
energy used by iron =1.5kwh
rate for 1kwh =5.40
rate for 2kwh=5.40×2=10.8 rupees
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