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Mathematics QUESTION #963

In a group of 3 girls and 4 boys, there are two boys $B_1$ and $B_2$. The number of ways in which these girls and boys can stand in a queue such that all the girls stand together, all the boys stand together, but $B_1$ and $B_2$ are not adjacent to each other, is:

96
144✔️
120
72

Correct Answer Logic:

Girls together: $3!$ ways. Boys together: $4!$ ways. Two blocks arranged: $2!$ ways. Total $= 2! \times 3! \times 4! = 2 \times 6 \times 24 = 288$. Cases where $B_1, B_2$ adjacent: treat them as one unit → $2! \times 3! \times 3! \times 2! = 144$. Required $= 288 - 144 = 144$.

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Molecular Biology / Bioinformatics / Biochemistry QUESTION #11062

Question 82

Which endocrine gland is described as pea-sized?

Adrenal
Pituitary✔️
Pancreas
Hypothalamus

Correct Answer Logic:

The pituitary gland (hypophysis) is approximately the size of a pea (~1 cm diameter, ~0.5 g weight). Despite its small size, it is the 'master gland' — secreting numerous hormones (GH, TSH, ACTH, FSH, LH, prolactin, ADH, oxytocin) that regulate most other endocrine glands and many body functions. It is located at the base of the brain, attached to the hypothalamus by the infundibulum (pituitary stalk).

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Security Measures to Maintain Law and Order QUESTION #884

Question 83

In the "Man-Portable Air-Defense Systems" (MANPADS) mitigation plan, the ASF maintains order by:

Patrolling the runway only
Securing the Vulnerable Area (VA) footprint✔️
Inspecting passenger shoes
Checking pilot licenses

Correct Answer Logic:

Maintaining order against MANPADS requires patrolling the areas outside the airport fence where aircraft are at low altitudes.

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Math Physics Chemistry Biology QUESTION #538

Question 84

Which of the following is used for lowering blood cholesterol?

Neurospora
Griseofulvin
Aspergillus
Lovastatin✔️

Correct Answer Logic:

Lovastatin lowers cholesterol

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General Knowledge QUESTION #8606

Question 85

K2, the world's second highest peak, is also known by which name?

Goodwin Austin✔️
Kalhar Mount
Sia Kingri
None of these

Correct Answer Logic:

K2 is also called Mount Godwin-Austen.

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Islamic Studies QUESTION #225

Question 86

Which event was called Fateh Mubeen (Clear Victory) in the Holy Qur'an?

Conquest of Makkah
Peace of Hudaybiyah✔️
Battle of Badr
None of these

Correct Answer Logic:

Surah Al-Fath refers to the Treaty of Hudaybiyah as a "clear victory" due to its strategic results.

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Psychology QUESTION #9799

Question 87

Psychology has been most comprehensively defined by psychologists as:

The study of behavior
The study of mental activity
The science that studies behavior and mental processes✔️
All of these

Correct Answer Logic:

The most comprehensive modern definition: the science that studies behaviour and mental processes. This integrates behaviourism (observable actions) and cognitive psychology (internal processes like thought and emotion).

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English QUESTION #7644

Question 88

Urdu meaning: Evoke:

‫یاد کرنا‬✔️
‫یاد دلانا/جگانا‬
‫حوصلہ افزائی کرنا‬
None of these

Correct Answer Logic:

'Evoke' means to bring or recall to the mind, to call forth emotions or memories. The Urdu equivalent is 'یاد دلانا' (yaad dilana) or 'یاد کرنا' (yaad karna), which means to remind or to bring to memory.

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Psychology QUESTION #9913

Question 89

Which of the following could be attributed to Tolman's research?

Discovery of the law of effect
The concept of cognitive map✔️
The negative effect of punishment
The role of classical conditioning in phobic disorders

Correct Answer Logic:

Tolman's most notable contribution was the cognitive map concept — demonstrated through latent learning experiments showing rats form internal mental representations of mazes, challenging pure stimulus-response behaviourism.

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Home Economics QUESTION #6273

Question 90

According to Vygotsky, the gap between what a learner can do alone and what they can do with help is:

Cognitive Dissonance
The Zone of Proximal Development✔️
Scaffolding
The Sensory Register

Correct Answer Logic:

The ZPD is the range of tasks that are too difficult for a child to master alone but can be learned with guidance.

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Psychology QUESTION #9926

Question 91

What are the problems associated with low birth weight?

Susceptibility to infection
Difficulty maintaining body temperature
Difficulty with breathing, sucking, swallowing, and digestion
All of the above✔️

Correct Answer Logic:

Low birth weight (LBW) infants face multiple serious health risks: infection susceptibility (weak immune system), thermal instability (underdeveloped temperature regulation), and breathing/sucking/swallowing/digestion difficulties. All are documented complications.

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Boilers Mechanical Engineering QUESTION #2385

Question 92

The Nyquist stability criterion states that for a closed-loop system to be stable (when open-loop system has $P$ poles in the right-half plane):

The Nyquist plot must encircle the $(-1, j0)$ point clockwise $P$ times
The Nyquist plot must encircle the $(-1, j0)$ point counterclockwise $P$ times✔️
The Nyquist plot must not cross the negative real axis
The Nyquist plot must be a circle

Correct Answer Logic:

Nyquist criterion: $N=Z-P$ where $N$ = clockwise encirclements of $(-1,0)$, $Z$ = closed-loop RHP poles, $P$ = open-loop RHP poles. For stability $Z=0$, so $N=-P$ (i.e., $P$ counterclockwise encirclements).

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English QUESTION #8463

Question 93

Regular exercise is beneficial _______ health.

with
for
to✔️
of

Correct Answer Logic:

'Beneficial to' is the correct preposition.

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General Knowledge QUESTION #8997

Question 94

Who is called the 'Man of Destiny' in European history?

Napoleon Bonaparte✔️
Otto von Bismarck
Adolf Hitler
Charles de Gaulle

Correct Answer Logic:

Napoleon is often called the 'Man of Destiny'.

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Reading and Writing (Module-1) QUESTION #5321

Question 95

While many people believe that the primary function of a museum is to preserve artifacts, some curators argue that the ______ of those objects is equally important, as it allows the public to engage with history. Which choice completes the text with the most logical and precise word?

accessibility✔️
storage
origin
cost

Correct Answer Logic:

Engaging the public requires that objects be 'accessible,' making 'accessibility' the correct choice.

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Pharmacokinetics and Pharmacodynamics QUESTION #3833

Question 96

A patient takes ferrous sulphate mixture $300\ \text{mg}/10\ \text{mL}$, dose $10$ mL three times daily. Given $\text{FeSO}_4 \cdot 7\text{H}_2\text{O}\ M_r = 278$ and $\text{Fe}\ M_r = 55.9$, what is the daily elemental iron intake?

$3.23$ mg
$17.1$ mg
$60.0$ mg
$181.0$ mg✔️

Correct Answer Logic:

Daily $\text{FeSO}_4 = 300\ \text{mg} \times 3 = 900\ \text{mg}$. Moles $= \dfrac{900}{278} = 3.237\ \text{mmol}$. Elemental Fe $= 3.237 \times 55.9 = 181\ \text{mg}$.

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Geography QUESTION #6335

Question 97

The sectoral shift from primary to secondary to tertiary employment during economic development is known as:

Structural transformation✔️
Demographic transition
Industrial revolution
Urbanization process

Correct Answer Logic:

Structural transformation (or Clark-Fisher model) describes the systematic shift of labor force from agriculture (primary) to manufacturing (secondary) to services (tertiary) as economies develop, reflecting rising agricultural productivity and changing demand patterns with income growth.

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Professional QUESTION #1833

Question 98

Section 10A(1) prohibits a civil servant from serving in any international organization during service. Which of the following organizations is EXPLICITLY mentioned in Section 10A as falling within the scope of this restriction?

Bilateral trade missions of Pakistan
Foreign donor agencies✔️
Multinational corporations operating in Pakistan
Foreign embassies accredited to Pakistan

Correct Answer Logic:

Section 10A(1) inserted by Act No. XVII of 2016 explicitly lists international organizations, international non-governmental organizations, international financial institutions, and foreign donor agencies as covered by the restriction. Multilateral or bilateral trade missions and foreign embassies are not listed in this section.

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Aptitude QUESTION #11011

Question 99

A $3 \times 3 \times 3$ cube is built from $27$ unit cubes. If the outer layer is removed, how many unit cubes remain?

$8$
$12$
$18$
$1$✔️

Correct Answer Logic:

Removing the outer layer from a $3 \times 3 \times 3$ cube leaves a $1 \times 1 \times 1$ inner cube. So only $1$ unit cube remains.

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Islamic Studies QUESTION #8249

Question 100

Which Prophet was eaten by a fish?

Hazrat Isa (A.S.)
Hazrat Moosa (A.S.)
Hazrat Yousaf (A.S.)
Hazrat Younas (A.S.)✔️

Correct Answer Logic:

Prophet Yunus (Jonah) AS was swallowed by a large fish (whale). When he left his people in frustration before Allah's permission, he was swallowed by a whale as a trial. He remained in its belly, making the famous supplication: 'La ilaha illa anta, subhanaka, inni kuntu minaz-zalimin' (There is no deity except You; exalted are You. Indeed, I have been of the wrongdoers). Allah accepted his repentance and freed him, and his people eventually believed.

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