Quant (Problem Solving)
Machine A can produce 50 components a day while machine B only 40. The monthly maintenance cost for machine A is $1500 while that for machine B is $550. If each component generates an income of $10 what is the least number of days per month that the plant has to work to justify the usage of machine A instead of machine B?
(A) 6
(B) 7
(C) 9
(D) 10
(E) 11
Verbal (Critical Reasoning)
A sudden increase in the production of elephant ivory artifacts on the Mediterranean coast of North Africa occurred in the tenth century. Historians explain this increase as the result of an area opening up as a new source of ivory and argue on this basis that the important medieval trade between North Africa and East Africa began at this period.
Each of following, if true, provides some support for the historians’ account described
above EXCEPT:
(A) In East Africa gold coins from Mediterranean North Africa have been found at a tenth-century site but at no earlier sites.
(B) The many surviving letters of pre-tenth-century North African merchants include no mention of business transactions involving East Africa.
(C) Excavations in East Africa reveal a tenth-century change in architectural style to reflect North African patterns.
(D) Documents from Mediterranean Europe and North Africa that date back earlier than the tenth century show knowledge of East African animals.
(E) East African carvings in a style characteristic of the tenth century depict seagoing vessels very different from those used by local sailors but of a type common in the Mediterranean.
Problemas GMAT 02/04/14
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Problemas GMAT 02/04/14
"En esta vida, todo lo que merece la pena, cuesta conseguirlo"
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Re: Problemas GMAT 02/04/14
Te respondo al problema de quant:
Siendo x el numero mínimo de días que se piden:
beneficio mensual de A: 50*10*x-1500
beneficio mensual de B: 40*10*x-550
Buscamos que el beneficio mensual de A sea mayor, resolviendo la inecuación tenemos que x>9,5. Por tanto la respuesta es 10, la D.
Un abrazo!
Siendo x el numero mínimo de días que se piden:
beneficio mensual de A: 50*10*x-1500
beneficio mensual de B: 40*10*x-550
Buscamos que el beneficio mensual de A sea mayor, resolviendo la inecuación tenemos que x>9,5. Por tanto la respuesta es 10, la D.
Un abrazo!
"I don´t have dreams, I have goals"
- hugoness
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Re: Problemas GMAT 02/04/14
Yo voy a responder a la pregunta de verbal:
D: si existía conocimiento de los animales de East Africa, significa que ya había existido algún tipo de contacto con la zona. Esto contradice la teoría de que el repentino aumento de los productos de marfil se debe al establecimiento de relaciones con esa zona, pues estas existían previamente.
D: si existía conocimiento de los animales de East Africa, significa que ya había existido algún tipo de contacto con la zona. Esto contradice la teoría de que el repentino aumento de los productos de marfil se debe al establecimiento de relaciones con esa zona, pues estas existían previamente.
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Re: Problemas GMAT 02/04/14
Estoy de acuerdo con las dos preguntas. La de verbal no es muy difícil, pero he de decir que la de Quant está escrita un poco enrevesada. En una primera lectura no queda claro si quieren cubrir el coste de A usando las dos máquinas, el coste de A usando sólo A, o (la buena) el punto de inflexión a partir del cual A es más rentable. El lado positivo es que hacer los números para descartar las dos primeras interpretaciones es bastante rápido.
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Re: Problemas GMAT 02/04/14
Quant (Problem Solving)
Machine A can produce 50 components a day while machine B only 40. The monthly maintenance cost for machine A is $1500 while that for machine B is $550. If each component generates an income of $10 what is the least number of days per month that the plant has to work to justify the usage of machine A instead of machine B?
(A) 6
(B) 7
(C) 9
(D) 10
(E) 11
Solución propuesta:
Verbal (Critical Reasoning)
A sudden increase in the production of elephant ivory artifacts on the Mediterranean coast of North Africa occurred in the tenth century. Historians explain this increase as the result of an area opening up as a new source of ivory and argue on this basis that the important medieval trade between North Africa and East Africa began at this period.
Each of following, if true, provides some support for the historians’ account described above EXCEPT:
(A) In East Africa gold coins from Mediterranean North Africa have been found at a tenth-century site but at no earlier sites.
(B) The many surviving letters of pre-tenth-century North African merchants include no mention of business transactions involving East Africa.
(C) Excavations in East Africa reveal a tenth-century change in architectural style to reflect North African patterns.
(D) Documents from Mediterranean Europe and North Africa that date back earlier than the tenth century show knowledge of East African animals.
(E) East African carvings in a style characteristic of the tenth century depict seagoing vessels very different from those used by local sailors but of a type common in the Mediterranean.
Solución propuesta:
Machine A can produce 50 components a day while machine B only 40. The monthly maintenance cost for machine A is $1500 while that for machine B is $550. If each component generates an income of $10 what is the least number of days per month that the plant has to work to justify the usage of machine A instead of machine B?
(A) 6
(B) 7
(C) 9
(D) 10
(E) 11
Solución propuesta:
respuesta: show
A sudden increase in the production of elephant ivory artifacts on the Mediterranean coast of North Africa occurred in the tenth century. Historians explain this increase as the result of an area opening up as a new source of ivory and argue on this basis that the important medieval trade between North Africa and East Africa began at this period.
Each of following, if true, provides some support for the historians’ account described above EXCEPT:
(A) In East Africa gold coins from Mediterranean North Africa have been found at a tenth-century site but at no earlier sites.
(B) The many surviving letters of pre-tenth-century North African merchants include no mention of business transactions involving East Africa.
(C) Excavations in East Africa reveal a tenth-century change in architectural style to reflect North African patterns.
(D) Documents from Mediterranean Europe and North Africa that date back earlier than the tenth century show knowledge of East African animals.
(E) East African carvings in a style characteristic of the tenth century depict seagoing vessels very different from those used by local sailors but of a type common in the Mediterranean.
Solución propuesta:
respuesta: show
"En esta vida, todo lo que merece la pena, cuesta conseguirlo"
- hugoness
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Re: Problemas GMAT 02/04/14
Mañana más
"En esta vida, todo lo que merece la pena, cuesta conseguirlo"