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Basic Mathematics QUESTION #2817

A batsman's average after 12 innings is 36. In the 13th inning he scores 87. What is his new average?

39
39.5
40✔️
40.5

Correct Answer Logic:

Total runs after 12 innings $= 12 \times 36 = 432$. After 13th inning $= 432 + 87 = 519$. New average $= \dfrac{519}{13} = 39.92 \approx 40$.

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Economics QUESTION #1683

Question 2922

In consumer theory, the marginal utility of consuming a good is most precisely defined as the:

Total utility derived from the good before the last unit is consumed
Additional utility gained from consuming one more unit of the good✔️
Utility derived from consuming a different, substitute good
Consumer surplus generated from the consumption of an alternative good

Correct Answer Logic:

Marginal utility (MU) is the additional (incremental) utility or satisfaction a consumer derives from consuming one more unit of a good, holding all else constant. Mathematically: $MU = \dfrac{\Delta TU}{\Delta Q}$. The Law of Diminishing Marginal Utility states that MU typically declines as more units are consumed. It is the foundational concept in cardinal utility analysis and the derivation of the demand curve.

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Pakistan Affairs QUESTION #4666

Question 2923

Which Pakistani scientist was the sole Nobel Prize winner from Pakistan?

Dr. Ashfaq Ahmed
Dr. Abdus Salam✔️
Dr. Abdul Qadeer Khan
Dr. Salimuzzaman Siddiqui

Correct Answer Logic:

Dr. Abdus Salam was the first Pakistani Nobel Laureate, receiving the 1979 Nobel Prize in Physics for his work on the electroweak unification theory.

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Security Measures to Maintain Law and Order QUESTION #852

Question 2924

Under Section 7(1), a search must be conducted with "strict regard to decency." For a female passenger, this legally implies:

Search by any officer
Search only by a female officer✔️
No search allowed
Search in public view

Correct Answer Logic:

Professional conduct and human rights protocols require that body searches of females be conducted only by female staff in a private setting.

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Basic Mathematics QUESTION #2898

Question 2925

Find the amount if $\$800$ is invested at $6\%$ simple interest for $2$ years.

$\$896$✔️
$\$900$
$\$848$
$\$912$

Correct Answer Logic:

Interest $= (800 \times 6 \times 2)/100 = 96$. Amount $= 800 + 96 = 896$.

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Agronomy QUESTION #2017

Question 2926

Primary tillage differs from secondary tillage in that primary tillage:

Is performed closer to sowing time with lighter implements
Breaks the soil to greater depths and is performed soon after harvest of the previous crop✔️
Is exclusively used for inter-row cultivation during crop growth
Involves only the surface 2–3 cm of soil

Correct Answer Logic:

Primary tillage refers to deep initial tillage (e.g., moldboard or disc plowing) performed after harvest to break up compacted soil. Secondary tillage involves shallower, finer operations (harrowing, leveling) performed closer to sowing to refine the seedbed.

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General Knowledge QUESTION #174

Question 2927

Arshad Nadeem won the Olympic Gold Medal by throwing the Javelin to:

81.55 meters
81.21 meters
82.15 meters
None of these✔️

Correct Answer Logic:

He set an Olympic record with a massive throw of 92.97 meters.

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Islamic Studies QUESTION #626

Question 2928

How many years did Hazrat Muhammad (ﷺ) stay in Makkah after the first Revelation?

10 years
11 years
12 years
13 years✔️

Correct Answer Logic:

He remained in Makkah for 13 years before migrating to Madina.

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Mechanical Engineering QUESTION #2448

Question 2929

The centrifugal force $F_0$ generated by an unbalanced rotating mass $m_0$ at eccentricity $r$ rotating at speed $p$ (rad/s) is:

$F_0 = m_0 r p$
$F_0 = m_0 r p^2$✔️
$F_0 = m_0 r^2 p$
$F_0 = m_0 g r$

Correct Answer Logic:

The centrifugal force from an unbalanced rotating mass: $F_0=m_0 r p^2$, where $m_0$ is the unbalance mass, $r$ is the eccentricity, and $p$ is the angular speed.

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Statistics QUESTION #2003

Question 2930

A drink machine dispenses $\mu = 200$ ml with $\sigma = 15$ ml (normally distributed). The probability that a cup contains between 191 and 209 ml, i.e., $P(191 < X < 209)$, is found using $z$-scores of:

$z = \pm 0.4$
$z = \pm 0.6$✔️
$z = \pm 0.9$
$z = \pm 1.2$

Correct Answer Logic:

$z = \dfrac{191 - 200}{15} = -0.6$ and $z = \dfrac{209 - 200}{15} = +0.6$. So $P(-0.6 < Z < 0.6) \approx 0.4515$ from standard normal tables. The correct $z$-values are $\pm 0.6$.

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MCQs Section QUESTION #4885

Question 2931

Which word is opposite to "OBLITERATE"

Preserve✔️
Destroy
Ravage
Design

Correct Answer Logic:

Obliterate means to destroy utterly; wipe out completely. Its antonym is Preserve, meaning to maintain or keep something intact.

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Basic Mathematics QUESTION #4517

Question 2932

Simplify: $(5^2)^3$

$5^5$
$5^6$✔️
$5^8$
$15^6$

Correct Answer Logic:

Using law of exponents: $(b^m)^n = b^{mn}$. So $(5^2)^3 = 5^{2 \times 3} = 5^6$

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Islamic Studies QUESTION #360

Question 2933

Who was the last Abbasid Caliph (in Baghdad)?

Al Qaim
Al Zahir
Al Mustakfi
Al Mustasim✔️

Correct Answer Logic:

Al-Mustasim Billah was the last caliph of the Abbasid Caliphate in Baghdad before the Mongol invasion.+1

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3359

Question 2934

'Monoclonal' antibodies are produced from:

A single clone of B-cells✔️
Multiple different types of cells
Viruses
Soil

Correct Answer Logic:

They are identical and recognize the exact same epitope (antigen site).

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Sociology QUESTION #1662

Question 2935

In his seminal work 'The Protestant Ethic and the Spirit of Capitalism,' Max Weber contends that the distinctive rationalized form of modern Western capitalism emerged primarily as a consequence of which religious and cultural force?

Economic rationalization alone
The ethic of worldly asceticism rooted in Calvinist and Puritan Protestantism✔️
The rise of materialist philosophy in Enlightenment Europe
The technological momentum of the Industrial Revolution

Correct Answer Logic:

Weber argued that the 'spirit of capitalism' — characterized by disciplined work, reinvestment of profit, and avoidance of consumption — was uniquely fostered by the ascetic Protestant ethic, particularly Calvinism's doctrine of predestination. This cultural orientation, not material conditions alone, gave capitalism its distinctive rational character in the West.

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Boilers Mechanical Engineering QUESTION #4055

Question 2936

'Boiler Horsepower' (BHP) is equivalent to the evaporation of:

$34.5~lb$ of water per hour from and at $212^\circ\text{F}$✔️
$1~kg$ of water
$1000~lb$ of water
$1~hp$ motor

Correct Answer Logic:

This is an old unit of measure still used in North America for smaller boilers.

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Physics QUESTION #4393

Question 2937

If a plastic sheet of relative permittivity $\varepsilon_r = 2.5$ is inserted between two point charges placed in vacuum, then the electrostatic force between them:

Increases by a factor of 2.5
Decreases by a factor of 2.5✔️
Increases by a factor of 5
Decreases by a factor of 5

Correct Answer Logic:

Coulomb's law in a medium: $F = \dfrac{kq_1q_2}{\varepsilon_r r^2}$. Inserting a dielectric with $\varepsilon_r = 2.5$ reduces the force by the factor $\varepsilon_r$. So the force decreases by a factor of $2.5$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3466

Question 2938

'Negative Nitrogen Balance' occurs when:

Nitrogen intake equals output
Nitrogen output exceeds intake (as in starvation or severe illness)✔️
Muscles are growing
During pregnancy

Correct Answer Logic:

Indicates body protein is being broken down faster than it is replaced.

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Urdu QUESTION #5059

Question 2939

رئیس المتغزلین کس شاعر کو کہا جاتا ہے؟

ناصر کاظمی
علامہ اقبال
جگر مرادآبادی✔️
داغ دہلوی

Correct Answer Logic:

جگر مرادآبادی کو رئیس المتغزلین کا خطاب دیا گیا کیونکہ وہ غزل کے ماہر و استاد شاعر تھے۔

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Chemistry QUESTION #4349

Question 2940

An enzyme used to decompose lipids into fatty acids in our alimentary canal is:

Amylase
Protease
Lipase✔️
Urease

Correct Answer Logic:

Lipase is the enzyme secreted by the pancreas that hydrolyzes (breaks down) lipids (fats and oils) into fatty acids and glycerol in the small intestine.

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