For the expert here,
do you hava any goos idea.
thank you
(edited)
how many light bulb are on at any given time in the USA
3 answers
I am not 100% about this, curious to hear feedback:
[Pop US] * [1/people per household ] * [# rooms per household] * [light bulbs per household] = # light bulbs in the US. Let's assume another 25-50% for businesses.
Once we have the # of light bulbs, we need to give out how many are on in any given time. Let's assume a standard distribution across the day and say that 6 hours out of 24 hours the bulbs are on.
We have [# of lightbulbs US] * [6/24] = # lightbulbs that are on per hour.
@ Others: would this work?
I agree with the previous answer. We might take additionally into account that not all bulbs are switched on at the same time - by a factor or so.
Hi,
That's one of the most common market sizing questions and I've seen the solution in multiple casebooks. You can find it easily if you google.
Best!
Related BootCamp article(s)
Market Sizing
Market Sizing Cases are used to test your quantitative and reasoning skills. The interviewer evaluates your structure, numbers-handling and business sense.
20 Comment(s)Important Facts
It's essential to know some key figures regarding geographies, population, economies for your case interviews. We summarized them for you here.
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