Six scientists A, B, C, D, E and F are to present a paper
each at a one-day conference. Three of them will present their paper in the
morning session before the lunch break whereas the other three will present in
the afternoon session. The lectures have to be scheduled in such a way that
they comply with the following restrictions:
B should present his paper immediately before C’s
presentation; their presentations cannot be separated by the lunch break. D
must be either the first or the last scientist to present his paper.
Q: In case F and E are the fifth and sixth presenters respectively then which of the following must be true?
Nine Individuals – Z, Y, X, W, V, U, T, S AND R are the only
candidates, who can serve on three committees labeled A, B and C.
Each candidate should serve on exactly one of the
committees.
Committee A should consist of exactly one member more than
that of committee.
It is possible that there are no members of committee C.
Among Z, Y and X none can serve on committee A. Among W, V and U none can serve
on committee C. Among T, S and R none can serve on committee C.
Q: Among the following combinations which could constitute the membership of committee C?
Follow us to the real Pakistan leaving behind the
disturbances of civilization. Real Pakistan is still inhabited by the eagle,
the cow, the black deer, and tigers; it is still spacious, sprawling, and
majestic. Experience the freedom and serenity still to be found in
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Dieticians claim that those people who seek help to quit the habit of over eating, are unable to stop overeating. Therefore, doctors have concluded that success in breaking such habit is rare. A large-scale survey shows that thousands of people have quit the habit of over eating. If both of the statements above are correct, an explanation that resolves their apparent contradiction is.
In a factory control room, there are three ON-OFF switches
on the central control panel, labeled A, B and C. They are changed from default
setting to a required setting based on the following rules:
In case only switch A is ON in the default setting, then
turn switch B ON.
In case switches A and B are the only switches ON in the
default setting, then turn switch C ON. In case all the three switches are ON,
in default setting, then turn the switch C OFF. For any other default setting,
turn ON all switches that are OFF and turn OFF all switches, if any, that are
ON.
Q: In case, all three switches are ON in the second setting, which among the following could have been the default setting?
In a factory control room, there are three ON-OFF switches
on the central control panel, labeled A, B and C. They are changed from default
setting to a required setting based on the following rules:
In case only switch A is ON in the default setting, then
turn switch B ON.
In case switches A and B are the only switches ON in the
default setting, then turn switch C ON. In case all the three switches are ON,
in default setting, then turn the switch C OFF. For any other default setting,
turn ON all switches that are OFF and turn OFF all switches, if any, that are
ON.
Q: In case, only switch B is ON in the second setting. Which of the following could have been the default setting?
In an in vitro study, 160 white cars were injected with Salt
X. 160 other white cats injected with placebo. In two weeks, 39% of the white
cats, who were injected with Salt X showed symptoms of Kay fever. Hence, it can
be concluded that Kay fever is caused by some elements similar to the elements
in Salt X.
Q: Which of the following would most strengthen the argument above?
Multan Institute of Higher Studies plans to show five
educational films A, B, C, D and E to a group of students. The film shows are
planned in an order, which conforms to the following conditions:
A must be shown earlier than C.
B must be shown earlier than D.
Three girls Joan, Rita and Kim and two boys Tim and Steve
are the only dancers in a dance program, which consists of six numbers in this
order: One a duet; two a duet; three a solo; four a duet; five a solo; and six
a duet.
None of the dances is in two consecutive numbers or in more
than two numbers. The first number in which Tim appears is the one that comes
before the first number in which Kim appears.
The second number in which Tim appears is one that comes
after the second number in which Kim appears.
Q: Rita must perform only in duets if
Nine Individuals – Z, Y, X, W, V, U, T, S AND R are the only
candidates, who can serve on three committees labeled A, B and C.
Each candidate should serve on exactly one of the
committees.
Committee A should consist of exactly one member more than
that of committee.
It is possible that there are no members of committee C.
Among Z, Y and X none can serve on committee A. Among W, V and U none can serve
on committee C. Among T, S and R none can serve on committee C.
Q: of the nine individuals, the largest number that can serve together on committee C is
A chemist is preparing a nutriment using eight different vitamins
and minerals ….A, B, C, D, E, H, F(Ferric), and Z(Zinc). According to the
recipes, the following requirements apply to the use of ingredients:
(i) If B is used, both C and Z must also be used
(ii) E and H must always be used together
(iii) If C is used, at least two of A, B and F must also be
used
(iv) C and H cannot be used together
(v) E, F and Z cannot all be used in a same nutrient
(vi) A, D, and Z cannot all be used in the same nutriment
Q: By the addition of exactly one more mineral, which of the
following could make an acceptable combination of vitamins and minerals?
