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3 years ago

A light bulb consumes 3600 watt-hours in 3 days and 18 hours. How many watt-hours does it consume per day?

Mathematics

2 answers:

AURORKA [14]3 years ago

8 0

Answer:

$960$ Watt

Step-by-step explanation:

Power consumed by light bulb in $3$ days and $18$ hours = $3600$ Watt

number of hours in one day = $24$ hours

total number of hours in $3$ days and $18$ hours = $3*24 + 18 = 90$ hours

Power consumed by light bulb in $1$ hour = $\frac{3600}{90} = 40$ Watt

∴ Power consumed by light bulb in $1$ day ( $24$ hours) = $40*24 = 960$ Watt

Tasya [4]3 years ago

3 0

18 hours = 18/24 reduces to 3/4 of a day

3/4 = 0.75

so 3600/3.75 = 960 watts per day

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