Question

if you have 60 w is lighted from 4 hours every from 30 days for the energy consumed

Answer 1

Heya!!!

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bulb1 are 2 n number

Power (P1) = 60W

time (t1) = 4 hr

Energy consumed in one day (W1) = P1 x t1 x 2 = 60W x 4h x 2 = 480Wh

bulb2 are 3 in number

Power (P2) = 100W

time (t2) = 5 hr

Energy consumed in one day (W2) = P2 x t2 = 100W x 5h x 3 = 1500Wh

therefore, electric energy consumed in one day = W1 + W2 = 480+1500 = 1980Wh

electric energy consumed in 30 days = 1980 x 30 = 59400 Wh = 59.4 kWh

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Hope it helps :))