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A certain encyclopedia has 20 volumes, each of which is w [#permalink]

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06 Aug 2011, 04:08

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A certain encyclopedia has 20 volumes, each of which is w inches wide, k inches long and t inches thick. If all of the volumes are to be tightly packaged in one rectangular box that is k inches wide and w inches deep inside, could the inside length of the box less than 35 inches

Re: A math problem, pls help to solve it(11) [#permalink]

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06 Aug 2011, 08:28

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Jasontuyj2012 wrote:

A certain encyclopedia has 20 volumes, each of which is w inches wide, k inches long and t inches thick. If all of the volumes are to be tightly packaged in one rectangular box that is k inches wide and w inches deep inside, could the inside length of the box less than 35 inches

(1) t = 1.5 (2) w=9 and k=12

you should think about it like is T * 20 < 35

statement 1 tells us that t=1.5 so 1.5 * 20 < 35 so 30<35 suffiecint

statement 2 tells us nothing about about T so in sufficient

the answer is A
_________________

How can i lose my faith in life's fairness when i know that the dreams of those who sleep on the feathers are not more beautiful than the dreams of those who sleep on the ground? - Jubran Khaleel Jubran

Re: A math problem, pls help to solve it(11) [#permalink]

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07 Aug 2011, 17:31

I'm so stupid, I got it. Thank you so much for the explaination.

Silver89 wrote:

Jasontuyj2012 wrote:

A certain encyclopedia has 20 volumes, each of which is w inches wide, k inches long and t inches thick. If all of the volumes are to be tightly packaged in one rectangular box that is k inches wide and w inches deep inside, could the inside length of the box less than 35 inches

(1) t = 1.5 (2) w=9 and k=12

you should think about it like is T * 20 < 35

statement 1 tells us that t=1.5 so 1.5 * 20 < 35 so 30<35 suffiecint

statement 2 tells us nothing about about T so in sufficient

Re: A math problem, pls help to solve it(11) [#permalink]

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07 Aug 2011, 18:03

Jasontuyj2012 wrote:

I'm so stupid, I got it. Thank you so much for the explaination.

Silver89 wrote:

Jasontuyj2012 wrote:

A certain encyclopedia has 20 volumes, each of which is w inches wide, k inches long and t inches thick. If all of the volumes are to be tightly packaged in one rectangular box that is k inches wide and w inches deep inside, could the inside length of the box less than 35 inches

(1) t = 1.5 (2) w=9 and k=12

you should think about it like is T * 20 < 35

statement 1 tells us that t=1.5 so 1.5 * 20 < 35 so 30<35 suffiecint

statement 2 tells us nothing about about T so in sufficient

the answer is A

no man you are not stupid , you are just new to this type of this questions and you are learning and believe me , at the first of my prep. , i asked question for which i can kill someone if he asked it
_________________

How can i lose my faith in life's fairness when i know that the dreams of those who sleep on the feathers are not more beautiful than the dreams of those who sleep on the ground? - Jubran Khaleel Jubran

Re: A math problem, pls help to solve it(11) [#permalink]

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07 Aug 2011, 18:05

and one kudos for encouraging you
_________________

How can i lose my faith in life's fairness when i know that the dreams of those who sleep on the feathers are not more beautiful than the dreams of those who sleep on the ground? - Jubran Khaleel Jubran

Re: A certain encyclopedia has 20 volumes, each of which is w [#permalink]

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29 Nov 2017, 00:24

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