17

Expert replies

vaivish: Master | Next Rank: 500 Posts; Posts: 371; Joined: Tue Apr 29, 2008 10:16 amFollowed by: 1 member; Thanked: 6 times

by vaivish » Sat Jul 26, 2008 5:19 am

17. Certain instruments used in veterinary surgery can be made either of stainless steel or of nylon. In a study of such instruments, 10 complete sterilizations of a set of nylon instruments required 3.4 times the amount of energy used to manufacture that set of instruments, whereas 50 complete sterilizations of a set of stainless steel instruments required 2.1 times the amount of energy required to manufacture that set of instruments.
If the statements above are true, each of the following could be true EXCEPT:
(A) The 50 complete sterilizations of nylon instruments used more energy than did the 50 complete sterilizations of the stainless steel instruments.
(B) More energy was required for each complete sterilization of the nylon instruments than was required to manufacture the nylon instruments.
(C) More nylon instruments than stainless steel instruments were sterilized in the study.
(D) More energy was used to produce the stainless steel instruments than was used to produce the nylon instruments.
(E) The total cost of 50 complete sterilizations of the stainless steel instruments was greater than the cost of manufacturing the stainless steel instruments.

Source: Beat The GMAT — Critical Reasoning | Sat Jul 26, 2008 5:19 am

raunekk: Legendary Member; Posts: 1159; Joined: Wed Apr 16, 2008 10:35 pm; Thanked: 56 times

by raunekk » Sat Jul 26, 2008 5:41 am

IMO:C

reachac: Legendary Member; Posts: 572; Joined: Fri Feb 22, 2008 9:25 am; Thanked: 21 times

by reachac » Sat Jul 26, 2008 5:52 am

IMO B

vaivish: Master | Next Rank: 500 Posts; Posts: 371; Joined: Tue Apr 29, 2008 10:16 amFollowed by: 1 member; Thanked: 6 times

by vaivish » Sat Jul 26, 2008 5:59 am

can you please put in the discussion for better understanding. OA is B .

raunekk: Legendary Member; Posts: 1159; Joined: Wed Apr 16, 2008 10:35 pm; Thanked: 56 times

by raunekk » Sat Jul 26, 2008 6:48 am

@reachac..

can u pls tell us d reasoning behind it..??

reachac: Legendary Member; Posts: 572; Joined: Fri Feb 22, 2008 9:25 am; Thanked: 21 times

by reachac » Sat Jul 26, 2008 9:12 pm

raunekk wrote:@reachac..

can u pls tell us d reasoning behind it..??

Oh sure:

The stem tells us Price P(for 10 Nylon sterlz) =3.4 x (x is total energy for producing 10 nylon)

Then
(P/10 )= .34 x

Now put in B, u'll get the answer

kiranlegend: Master | Next Rank: 500 Posts; Posts: 340; Joined: Thu Jun 12, 2008 8:09 am; Location: India; Thanked: 6 times

by kiranlegend » Mon Jul 28, 2008 1:31 pm

reachac wrote:
raunekk wrote:@reachac..

can u pls tell us d reasoning behind it..??
Oh sure:

The stem tells us Price P(for 10 Nylon sterlz) =3.4 x (x is total energy for producing 10 nylon)

Then
(P/10 )= .34 x

Now put in B, u'll get the answer

10 complete sterilizations of a set of nylon instruments required 3.4 times the amount of energy used to manufacture that set of instruments

@reachac:

from above, 1 complete sterilizations of a set of nylon instruments required .34 times the amount of energy used to manufacture that set of instruments => one sterilization's energy's amount < amount of envery to manufactor set of instruements/

B says More energy was required for each complete sterilization of the nylon instruments than was required to manufacture the nylon instruments.

B is contradicting

pls explain

reachac: Legendary Member; Posts: 572; Joined: Fri Feb 22, 2008 9:25 am; Thanked: 21 times

by reachac » Mon Jul 28, 2008 8:32 pm

kiranlegend wrote:
reachac wrote:
raunekk wrote:@reachac..

can u pls tell us d reasoning behind it..??
Oh sure:

The stem tells us Price P(for 10 Nylon sterlz) =3.4 x (x is total energy for producing 10 nylon)

Then
(P/10 )= .34 x

Now put in B, u'll get the answer
10 complete sterilizations of a set of nylon instruments required 3.4 times the amount of energy used to manufacture that set of instruments

@reachac:

from above, 1 complete sterilizations of a set of nylon instruments required .34 times the amount of energy used to manufacture that set of instruments => one sterilization's energy's amount < amount of envery to manufactor set of instruements/

B says More energy was required for each complete sterilization of the nylon instruments than was required to manufacture the nylon instruments.

B is contradicting

pls explain

Yes kiranlegend it is contrading

but that wat the qs is asking for "If the statements above are true, each of the following could be true EXCEPT: "

kiranlegend: Master | Next Rank: 500 Posts; Posts: 340; Joined: Thu Jun 12, 2008 8:09 am; Location: India; Thanked: 6 times

by kiranlegend » Mon Jul 28, 2008 9:54 pm

my badd..

thankuu reachac:)

ronniecoleman: Legendary Member; Posts: 546; Joined: Sun Nov 16, 2008 11:00 pm; Location: New Delhi , India; Thanked: 13 times

by ronniecoleman » Tue Jan 06, 2009 1:58 am

More energy was required for each complete sterilization of the nylon instruments than was required to manufacture the nylon instruments.

Each is compared with all...

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ashley.com: Master | Next Rank: 500 Posts; Posts: 100; Joined: Tue Aug 05, 2014 4:32 am

by ashley.com » Fri May 13, 2016 2:35 am

I think B is the most suitable

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