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# Each December 31 in Country Q, a tally is made ofthe country

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Senior Manager
Joined: 30 May 2005
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Each December 31 in Country Q, a tally is made ofthe country [#permalink]

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24 Jul 2005, 14:30
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Each December 31 in Country Q, a tally is made ofthe countryâ€™s total available coal suppliesâ€”that is, the total amount of coal that has been mined throughout the country but not consumed. In 1991 that amount was considerably lower than it had been in 1990. Furthermore, Country Q has not imported or exported coal since 1970.

If the statements above are true, which one of the following must also be true on the basis of them?

(A) In Country Q, more coal was mined in 1990 than was mined in 1991.

(B) In Country Q, the amount of coal consumed in 1991 was greater than the amount of coal mined in 1991.

(C) In Country Q, the amount of coal consumed in 1990 was greater than the amount of coal consumed in 1991.

(D) In Country Q, the amount of coal consumed in 1991 was greater than the amount of coal consumed in 1990.

(E) In Country Q, more coal was consumed during the first half of 1991 than was consumed during the first half of 1990.

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Senior Manager
Joined: 29 Jun 2005
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24 Jul 2005, 15:16
Hmm....easy one,
It is B

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Director
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29 Jul 2005, 07:23
yes agree on (B)

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Senior Manager
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29 Jul 2005, 08:30
Yes B it should be. We don't have any information about the coal mined or coal consumed. D comes close, but it is possible that more coal was mined than consumed, and that would weaken D.

Only B can be true.

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Manager
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29 Jul 2005, 12:32
B for me

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Senior Manager
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29 Jul 2005, 12:35
B for me too, obviously because they dug in to the supply remining from 1990.
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Fear Mediocrity, Respect Ignorance

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29 Jul 2005, 12:35
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# Each December 31 in Country Q, a tally is made ofthe country

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