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# There are four envelopes — E1, E2, E3 and E4— in which one was suppose

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Intern
Joined: 31 Aug 2015
Posts: 31
There are four envelopes — E1, E2, E3 and E4— in which one was suppose  [#permalink]

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22 Nov 2015, 22:47
1
00:00

Difficulty:

65% (hard)

Question Stats:

51% (02:03) correct 49% (02:12) wrong based on 62 sessions

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There are four envelopes — E1, E2, E3 and E4— in which one was supposed to put letters L1, L2, L3 and L4 meant for persons C1, C2, C3 and C4 respectively, but by mistake the letters got jumbled up and went in wrong envelopes. Now if C2 is allowed to open an envelope at random, then how will he identify the envelope containing the letter for him?

I. L2 has been put in E1.
II. The letter belonging to C3 has gone in the correct envelope.
Math Expert
Joined: 02 Aug 2009
Posts: 7686
Re: There are four envelopes — E1, E2, E3 and E4— in which one was suppose  [#permalink]

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23 Nov 2015, 06:38
excelingmat wrote:
There are four envelopes — E1, E2, E3 and E4— in which one was supposed to put letters L1, L2, L3 and L4 meant for persons C1, C2, C3 and C4 respectively, but by mistake the letters got jumbled up and went in wrong envelopes. Now if C2 is allowed to open an envelope at random, then how will he identify the envelope containing the letter for him?

I. L2 has been put in E1.
II. The letter belonging to C3 has gone in the correct envelope.

Hi,
1)how can you rate this Q as 700 +.. it should be sub 600..
you straight way have an answer in the first choice..
2) your Q stem says "the letters got jumbled up and went in wrong envelopes", whereas the statement 2 goes against this by stating that " The letter belonging to C3 has gone in the correct envelope"
_________________
Intern
Joined: 23 Oct 2016
Posts: 10
Re: There are four envelopes — E1, E2, E3 and E4— in which one was suppose  [#permalink]

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20 Jul 2017, 01:03
chetan2u wrote:
excelingmat wrote:
There are four envelopes — E1, E2, E3 and E4— in which one was supposed to put letters L1, L2, L3 and L4 meant for persons C1, C2, C3 and C4 respectively, but by mistake the letters got jumbled up and went in wrong envelopes. Now if C2 is allowed to open an envelope at random, then how will he identify the envelope containing the letter for him?

I. L2 has been put in E1.
II. The letter belonging to C3 has gone in the correct envelope.

Hi,
1)how can you rate this Q as 700 +.. it should be sub 600..
you straight way have an answer in the first choice..
2) your Q stem says "the letters got jumbled up and went in wrong envelopes", whereas the statement 2 goes against this by stating that " The letter belonging to C3 has gone in the correct envelope"

Can you please explain the solution ?
Re: There are four envelopes — E1, E2, E3 and E4— in which one was suppose   [#permalink] 20 Jul 2017, 01:03
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