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Two men, Barry and David, and two women Ann and Cathy are
doctors. One is a surgeon, one a dentist, one an
optometrist, and one is a general practitioner. They are
seated around a square table, with one person on each side.
1) Barry is across from the dentist.
2) David is not across from the surgeon.
3) The optometrist is on Ann's immediate left.
4) Cathy is the general practitioner.
5) The surgeon and general practitioner are married to each
other.
6) The general practitioner is not on Cathy's immediate left.
7) The general practitioner is across from the optometrist.
Which of the following must be true?
a) Barry is the dentist.
b) The surgeon and general practitioner are women.
c) The dentist is across from the surgeon.
d) David is the surgeon.
e) Cathy is across from Ann.
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Answer / surya.raj
c) The dentist is across from the surgeon.
A mistake was there above i my post marked by * so that you
can recognize it.
Since Men -> Barry (B), David (D)
And Women -> Ann(A), Cathy(c)
Four Categories of Doctors - > surgeon(Sur), dentist (Den),
optometrist(Opt), general practitioner(GP).
From Statement 1 -> B --- (Den)
From Statement 2 -> D --- (Opt)(GP)
From Statement 3 -> +-> A
V
(Opt)
From Statement 4 -> Cathy(C) is (GP)
From Statement 5 -> Since (Sur) and and [C(GP)] are
married to each other. hence (Sur) belongs to men category.
From Statement 7 -> (GP)---(Opt), from Statement 2 it
is clear that D is either (Opt) or (GP) since Cathy(c) is
(GP) then David(D) will be (Opt). From statement 1 it is
clear that B is not (Den) then he will be (Sur) and henc
Ann(A) will be (Den).
The whole sitting arrangement will be :
*C(GP)
B(Sur) + A(Den)
D(Opt)
From here you can see (Den) is across (Sur).
| Is This Answer Correct ? | 1 Yes | 0 No |
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Two men, Barry and David, and two women Ann and Cathy are doctors. One is a surgeon, one a dentist, one an optometrist, and one is a general practitioner. They are seated around a square table, with one person on each side. 1) Barry is across from the dentist. 2) David is not across from the surgeon. 3) The optometrist is on Ann's immediate left. 4) Cathy is the general practitioner. 5) The surgeon and general practitioner are married to each other. 6) The general practitioner is not on Cathy's immediate left. 7) The general practitioner is across from the optometrist. Which of the following must be true? a) Barry is the dentist. b) The surgeon and general practitioner are women. c) The dentist is across from the surgeon. d) David is the surgeon. e) Cathy is across from Ann.
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