Pakistan Mathematics Olympiad 2024 - Sample Paper
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Questions and Answers

Which of the following is a correct factorization of $2x^2 + x - 6$?

  • $x - 3$ $(x + 2)$
  • $(2x - 3) x - 3$
  • $(2x + 1)(x - 6)$
  • $(2x - 3)(x + 2)$ (correct)
  • Which point lies on the graphs of $y = 2x + 1 - x^2$, $y = x^2 - 4x + 1$, and $y = 2x^2 - 8x + 1$?

  • (1, -2)
  • (0, 1)
  • (4, 1) (correct)
  • (1, 0)
  • If Fatima eats 40% of 6 cupcakes in 30 minutes, how many hours will it take her to finish all cupcakes?

  • 1.25
  • 2
  • 2.5 (correct)
  • 1.5
  • What is the 2024th digit in the sequence of the numbers written by Abdullah?

    <p>4</p> Signup and view all the answers

    How many hours are there in half of a third of a quarter of a day?

    <p>2</p> Signup and view all the answers

    What is the largest difference possible between two 3-digit numbers using each digit only once?

    <p>987</p> Signup and view all the answers

    What is the sum of the largest 6-digit palindromic number and the smallest 5-digit palindromic number?

    <p>1010000</p> Signup and view all the answers

    What information is essential to determine the area of a given shape?

    <p>The dimensions of the shape's base and height</p> Signup and view all the answers

    If Hassan rolls a die 20 times and gets a 6 each time, which of the following values of n for tossing a coin would be possible, given that getting tails n times is less likely?

    <p>30</p> Signup and view all the answers

    What is the area of triangle PQR formed by points of tangency on circles inscribed in a rectangle with sides of lengths 14 cm and 2 cm?

    <p>8 cm²</p> Signup and view all the answers

    What is the probability of selecting 2 kings from a group of 6 playing cards, where only 2 are kings?

    <p>1/15</p> Signup and view all the answers

    Given four distinct whole numbers a, b, c, and d, if ab + bc + cd + ad is odd, how many of these numbers can be even?

    <p>2</p> Signup and view all the answers

    What proportion of a circle contains points closer to point A on the boundary than to center O?

    <p>1/4</p> Signup and view all the answers

    In a circle filled with five whole numbers, with no two or three consecutive numbers summing up to a multiple of 3, how many numbers can be divisible by 3?

    <p>3</p> Signup and view all the answers

    If a rectangle has a length of 14 cm and a width of 2 cm, which of the following could represent the area of a triangle formed by points tangent to circles inside the rectangle?

    <p>10√2 cm²</p> Signup and view all the answers

    What is a possible value of n such that the probability of tossing n tails is less than the probability of rolling a 6 twenty times?

    <p>20</p> Signup and view all the answers

    Which of the following numbers could not have been an integer root of the polynomial x7 + 2x6 + ... + 6?

    <p>6</p> Signup and view all the answers

    What is the highest possible number that Ahmad could have written if the mean of the ten distinct positive numbers is 10?

    <p>91</p> Signup and view all the answers

    In the scenario where each animal claims the one on their right is a fox, what can be inferred about the total number of animals on the island?

    <p>The number is a multiple of 2.</p> Signup and view all the answers

    How many cats are needed to catch 100 rats in 100 minutes based on the given ratio of cats to rats?

    <p>50</p> Signup and view all the answers

    What total distance does the fly cover while flying between Rehan and Malaik until they meet?

    <p>10 km</p> Signup and view all the answers

    Which of the following shapes cannot be split into two trapeziums by drawing one straight line?

    <p>A triangle</p> Signup and view all the answers

    If 3 cats catch 3 rats in 3 minutes, what will be the rate at which 5 cats can catch 5 rats in 5 minutes?

    <p>5 rats</p> Signup and view all the answers

    What is the smallest possible integer solution for the equation a(a + b) = 0?

    <p>0</p> Signup and view all the answers

    Study Notes

    Pakistan Mathematics Olympiad 2024 - Sample Paper

    • Exam Structure:

      • Total Marks: 100
      • Time Allowed: 3 hours
      • Twenty questions
      • Section A, B, and C
      • Different point values for correct answers based on section.
    • Instructions:

      • Mark answers on the Student Answer Sheet.
      • Dark, neat writing is required.
      • Completely fill in the circles on the answer sheet for each question.

    Instructions for the Exam

    • Answer Sheet: Only the Student Answer Sheet will be marked.
    • Answering:
      • Students can write in the booklet, but no marks are given for it.
      • Pencil marks must be dark. Writing should be neat.
      • Completely circle the answer choice on the answer sheet.
    • Time Limit: The exam has a 3-hour time limit.
    • Scoring:
      • Correct answers in section A are worth 3.5 points. Section B is worth 5 points and Section C is worth 7 points each.
      • Incorrect answers score zero points.
      • Unanswered questions get one point.

    Sample Questions (Section A)

    • Q1: Factorization of 2x² + x − 6

      • Correct answer: (2x - 3)(x + 2)
    • Q2: Point on the graphs of three equations:

      • y = 2x + 1 - x²
      • y = x² - 4x + 1
      • y = 2x² - 8x + 1
      • Correct answer: (1, 0)
    • Q3: Time to finish cupcakes:

      • Fatima ate 40% of 6 cupcakes in 30 minutes.
      • Time to finish all cupcakes eating at a constant rate.
      • Correct answer: 1.5 hours.
    • Q4: Digit pattern of a repeated string

    Sample Questions (Section B)

    • Q9: Integer roots of a polynomial.

      • Polynomial: x⁷ + 2x⁶ + ... + 6
    • Q10: Impossibility of creating two trapezoids. Find the shape.

    Sample Questions (Section C)

    • Q15: Probability of rolling a die and flipping a coin.

      • Roll a die 20 times, get 6 each time.
      • Flip a coin 'n' times, get tails each time.
      • Second event is less likely than the first.
      • Find a valid value for 'n'.
    • Q16: Area of a rectangle with inscribed circles.

      • Rectangle's dimensions are 14 cm by 2 cm.
      • Circles are identical and tangent.
      • Find area of triangle PQR
    • Q17: Probability of drawing two kings from a deck of cards.

      • Set-up: 6 cards placed upside down, 2 kings.
      • Choose two cards randomly.
      • Find probability of getting two kings.
    • Q18: Even and odd numbers in a set.

      • Four distinct whole numbers (a, b, c, and d)
      • Expression (ab + bc + cd + ad) is odd.
      • How many of the original numbers could be even??
    • Q19: Proportion of circle closer to a point than the center.

      • Point A on circle, Center O
      • Proportion of circle points closer to A than O.
    • Q20: Divisible by 3 consecutive numbers.

      • 5 whole numbers written in a circle
      • No sum of 3 consecutive numbers divisible by 3.
      • Find the number of numbers divisible by 3.

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    Description

    Prepare for the Pakistan Mathematics Olympiad 2024 with this sample paper. The exam consists of twenty questions over three sections, each with varying point values. Familiarize yourself with the exam structure and scoring to enhance your performance.

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