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1. |
Find the electricity bill for a month (assume 30 days) with the given data.(i) Six lamps of 40 W each, working for 4 hours per day(ii) Two tube lights 125 W each, working for 2 hours per day(iii) One 1 kW heater working for 3 hours per day.Each unit of energy costs Rs. 5. |
A. | Rs. 36 |
B. | Rs. 330 |
C. | Rs. 669 |
D. | Rs. 421 |
Answer» D. Rs. 421 | |