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FPSC MCQs

Federal Public Service Commission — Complete MCQ Bank

94 Questions
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How to prepare for FPSC

FPSC recruitment tests assess subject knowledge, general ability and job-related competence for federal government positions across Pakistan.

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Read the official syllabus first, then combine subject-specific revision with timed mixed-question practice.
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21
Mathematics Hard

The sum of a geometric series with a=2 r=3 and 4 terms is?

  • A80
  • B90
  • C100
  • D110
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Correct Answer: Option A — 80
Explanation: Sum = a(rⁿ-1)/(r-1) = 2(3⁴-1)/(3-1) = 2(80)/2 = 80. The finite geometric series formula applies when r≠1. For infinite series with |r|<1 sum = a/(1-r). Geometric series appear in competitive exam sequences and progressions sections and in financial problems involving compound growth scenarios.
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22
Mathematics Hard

How many prime numbers are between 1 and 50?

  • A14
  • B15
  • C16
  • D17
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Correct Answer: Option B — 15
Explanation: Primes: 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 = 15 primes. The Sieve of Eratosthenes systematically eliminates multiples to identify primes. Counting and identifying primes within a range is a number theory skill tested in competitive exams and is useful for quick factorization and divisibility checks.
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23
Mathematics Medium

What is the nth term of arithmetic sequence 3 7 11 15?

  • A4n-1
  • B4n+1
  • C3n+1
  • D2n+3
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Correct Answer: Option A — 4n-1
Explanation: First term a=3 common difference d=4. nth term = a+(n-1)d = 3+4(n-1) = 4n-1. Verification: n=1→3 n=2→7 n=3→11 confirms correctness. Finding nth term formulas for arithmetic sequences is essential for sequences and series questions in competitive exams and is also used in salary progression and installment problems.
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24
Mathematics Medium

What is the equation of a circle centered at origin with radius r?

  • Ax² + y² = r
  • Bx² - y² = r²
  • Cx² + y² = r²
  • Dx + y = r²
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Correct Answer: Option C — x² + y² = r²
Explanation: Standard equation of circle at origin: x²+y² = r². For center (h k): (x-h)²+(y-k)² = r². Circle equations including finding center and radius from general form and tangent line conditions are standard coordinate geometry topics in higher competitive exam papers including CSS and PMS.
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25
Mathematics Medium

Solve the absolute value equation: |2x - 3| = 7

  • Ax=5 or x=-2
  • Bx=5 or x=2
  • Cx=-5 or x=2
  • Dx=4 or x=-2
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Correct Answer: Option A — x=5 or x=-2
Explanation: Two cases: 2x-3=7 → x=5 or 2x-3=-7 → x=-2. Absolute value equations always yield two cases. This concept appears in both equation and inequality forms in competitive exams. Always solve both cases and verify each solution satisfies the original equation to avoid extraneous solutions.
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26
Mathematics Medium

What is the value of log(ab) in terms of log a and log b?

  • Alog a - log b
  • Blog a × log b
  • Clog a + log b
  • Dlog a / log b
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Correct Answer: Option C — log a + log b
Explanation: log(ab) = log a + log b is the product rule of logarithms. The three fundamental log rules: log(ab)=log a+log b (product) log(a/b)=log a-log b (quotient) log(aⁿ)=n×log a (power). These rules simplify complex logarithmic expressions and are heavily tested in competitive exam algebra.
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27
Mathematics Medium

If f(x) = 2x² + 3x - 5 what is f(2)?

  • A9
  • B10
  • C11
  • D13
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Correct Answer: Option A — 9
Explanation: f(2) = 2(4) + 3(2) - 5 = 8 + 6 - 5 = 9. Function evaluation requires substituting the given value and simplifying carefully following order of operations. This skill is fundamental for calculus topics and appears in algebra sections of competitive exams testing polynomial function evaluation.
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28
Mathematics Medium

What is the value of C(5 2)?

  • A5
  • B10
  • C15
  • D20
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Correct Answer: Option B — 10
Explanation: f(2) = 2(2²) + 3(2) - 5 = 8 + 6 - 5 = 9. Function evaluation requires substituting the given input value and carefully following order of operations. This skill is essential for polynomial and composite functions and appears in algebra and pre-calculus sections of competitive exams testing structured algebraic manipulation.
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29
Mathematics Medium

What is the derivative of x³ with respect to x?

  • Ax²
  • B3x
  • C3x²
  • D2x³
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Correct Answer: Option C — 3x²
Explanation: Derivative of xⁿ = nxⁿ⁻¹ (power rule). For x³: derivative = 3x². Differentiation measures the instantaneous rate of change of a function. The power rule is the most fundamental differentiation rule forming the starting point for all calculus problems in CSS PMS and higher competitive examinations.
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30
Mathematics Medium

What is the geometric mean of 4 and 16?

  • A6
  • B8
  • C10
  • D12
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Correct Answer: Option B — 8
Explanation: Geometric mean = √(a×b) = √(4×16) = √64 = 8. Geometric mean is appropriate for data involving ratios or multiplicative growth unlike arithmetic mean for additive data. The geometric mean always lies between the arithmetic mean (10) and harmonic mean of the same two numbers.
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