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# Was the average (arithmetic mean) weight of the package mailed at a

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Math Expert
Joined: 02 Sep 2009
Posts: 50058
Was the average (arithmetic mean) weight of the package mailed at a  [#permalink]

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11 Nov 2017, 08:45
00:00

Difficulty:

35% (medium)

Question Stats:

61% (01:25) correct 39% (01:20) wrong based on 44 sessions

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Was the average (arithmetic mean) weight of the package mailed at a certain post office yesterday greater than 600 grams?

(1) The total weight of the packages mailed at the post office yesterday was greater than 14,500 grams.

(2) Fewer than 25 packages were mailed at the post office yesterday.

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Re: Was the average (arithmetic mean) weight of the package mailed at a  [#permalink]

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11 Nov 2017, 08:51
Option C
We need total weight and the number of packages to answer this question.

From st1 we get total weight. St1 alone is insufficient

From st2 we get the number of packages. St2 alone can’t answer the question. Insufficient

Combining,
If number of package is 1 then average is 14500>600. Even if number of package is 24 (the maximum) 14500/24~604>600. Hence E

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Re: Was the average (arithmetic mean) weight of the package mailed at a  [#permalink]

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11 Nov 2017, 11:26
Sasindran - i think u wanted to say 'C'

combining both we get avg to be greater than 600
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Re: Was the average (arithmetic mean) weight of the package mailed at a &nbs [#permalink] 11 Nov 2017, 11:26
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