3 factories manufacture hubcaps. 2 of the factories can each produce 100,000 hubcaps in 15 days. The third factory canproduce hubcaps 30% faster. About how many days would it take to produce a million hubcaps with all these factories working simultaneoously?
The book gives this as the solution: two factories make 100,000/15 = 6,667 per day. The third makes 1.3 x 6,667 = 8,667. 8,667 +2[6,667] =22,001 hubcaps per day. It would take 45.5 days to produce a million hubcaps.
My question is where did they get 1.3?
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work problem: three factories manufacture hubcaps.... 
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work problem: three factories manufacture hubcaps....
by Motherof8 on Wed Jul 27, 2011 3:02 am
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Re: work problem: three factories manufacture hubcaps.... 
by little_dragon on Wed Jul 27, 2011 11:09 am
Motherof8 wrote:3 factories manufacture hubcaps. 2 of the factories can each produce 100,000 hubcaps in 15 days. The third factory canproduce hubcaps 30% faster. About how many days would it take to produce a million hubcaps with all these factories working simultaneoously?
The book gives this as the solution: two factories make 100,000/15 = 6,667 per day. The third makes 1.3 x 6,667 = 8,667. 8,667 +2[6,667] =22,001 hubcaps per day. It would take 45.5 days to produce a million hubcaps.
My question is where did they get 1.3?
30% more is 130% = 1.3
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little_dragon - Posts: 152
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