Electricity consumed by a household using incandescent bulb is 1480 units costing Rs. 4.50 per unit. Given that compact fluorescent lights (CFL’s) consume four times less energy and last eight times longer than incandescent bulbs:
Answer the following questions:
(i) How many units will be consumed if all bulbs are changed to CFL’s?
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Answer:
370 Units
Step-by-step explanation:
Electricity consumed by a household using incandescent bulb is 1480 units costing Rs. 4.50 per unit. Given that compact fluorescent lights (CFL’s) consume four times less energy and last eight times longer than incandescent bulbs:
Answer the following questions:
(i) How many units will be consumed if all bulbs are changed to CFL’s?
UNits consumed by Bulbs = 1480 Units
Let say Bulb consume B units
Number of Bulbs = 1480/B
CFL consume = B/4 units
Number of CFLs = 1480/B ( as all bulbs replaced by CFL)
Units consumed by CFLs = (B/4)(1480/B) = 370 units
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