MATHEMATICS 2024

  1. Evaluate the determinant of the matrix

  • A. 20
  • B. 25
  • C. 30
  • D. 35
  1. Find the amount if simple interest is paid yearly at 5% per annum for 3 years, on a principal of # 200,000.00
  • A. # 23, 000.00
  • B. # 30,000.00
  • C. # 300,000.00
  • D. # 230,000.00
  1. y is inversely proportional to x and y = 4, when x = 1212, find x when y = 10
  • A. 2
  • B. 10
  • C. 1/5
  • D. 1/10
  1. Find the angle subtended by an arc 33cm long of a circle of diameter 28cm.
  • A. 1050
  • B. 1150
  • C. 1200
  • D. 1350
  1. Solve 16xx = 0.25
  • A. -1/2
  • B. 1/4
  • C. -1/4
  • D. 1/2
  1. The ratio of men to women in a 20-member committee is 3:1. How many women must be added to the committee to make the ratio of men to women 3:2?
  • A. 2
  • B. 5
  • C. 7
  • D. 8
  1. If p * q = 2p + pq + q, find p  when ( p * 2) – (p * 1) = 40
  • A. 39
  • B. 40
  • C. 41
  • D. 42
  1. Which of the following is a measure of central tendency?
  • A. Standard deviation
  • B. Range
  • C. Variance
  • D. Mean

9.

From the figure above, find the length of Chord PQ

  • A. 17cm
  • B. 18cm
  • C. 7cm
  • D. 9cm

10.

Identify the equation of the shaded region in the given graph 

  • A. y > 1
  • B. x < 1
  • C. X > 1
  • D. y < 1
  1. In how many ways can 6 people sit around a table 
  • A. 120
  • B. 240
  • C. 60
  • D. 30

12.

The graph above represents inequalities

  • A. 3x +4y ≥12, x >0, y > 0
  • B. 3x + 4y≤ 12, x ≥ 0, y ≥ 0
  • C. 3x + 4y <12, x ≤ 0, y ≥ 0
  • D. 3x + 4y < 12, x ≥ 0, y ≥ 0

13.

  1. The sum to infinity of a GP is 100, find its first term if the common ratio is -1212
  • A. 150
  • B. 155
  • C. 160
  • D. 165
  1. PQR is a triangle such that |PQ| = |QR| = 8cm and QPR = 60º. Find the area of ∠∠PQR
  • A. 16√(2) cm2
  • B. 16√(2) cm2
  • C. 8√(3)cm2
  • D. 16√(2)cm2

16.

The Venn diagram above shows the number of students offering physics and chemistry in a class of 65. What is the probability that a student selected from the class offers physics and chemistry if every students offers at least one subject?

  • A. 2/13
  • B. 5/13
  • C. 2/5
  • D. 3/13
  1. From the top of a building 10m high, the angle of elevation of a fruit on top of a tree 25m is 30º. Calculate the horizontal distance between the building and the tree.
  • A. 15√3m
  • B. 5√3m
  • C. 25√3m
  • D. 30√3m
  1. A boy bought Oranges at the rate of #24.00 for 5 and sold it at the rate of # 30.00 for 4 Oranges. Find the profit made of the ones sold 
  • A. # 24.00
  • B. #30.00
  • C. # 10.80
  • D. #20.00
  1. Differentiate y = (5x + 1)4
  • A. 20 (5x + 1)3
  • B. 4(5x + 1)3
  • C. 5(5x + 1)3
  • D. (5x)3
  1. Simplify (5+√7)/(3+√7)
  • A. 17 – √7
  • B. 4 – √7
  • C. 7 – √7
  • D. 15 – √7
  1. Find the perimeter of a triangle whose vertices pass through ( 3, 2), (4, 5) and (6, 2) in surd form.
  • A. 3 + √12+√13
  • B. 3 – √10 + √13
  • C. 3 + √10 + √13
  • D. 3 – √12 + √13
  1. Find the 7th term of the sequence -10, 50, -250 ………..
  • A. 165250
  • B. 156250
  • C. -156250
  • D. -165,250
  1. The scores of students in a test are recorded as follows: 4, 3, 3, 2, 1, 2, 5, 7, 8, 3, and 5. Find the mode of the mark.
  • A. 2
  • B. 3
  • C. 4
  • D. 5
  1. P(x, 4) and Q( 10, 8) are two points joined by a straight line in a plane. If the midpoint of the line is (9, 6), find the value of x.
  • A. 12
  • B. 9
  • C. 8
  • D. 7
  1. Find x if  = (162+x)/4 = 64x
  • A. 3
  • B. – 3
  • C. 5
  • D. – 5
  1. Given that P is the set of all prime numbers between 0 and 10, and Q is the set of all odd numbers between 0 and 10. Find the union of elements in P that are not in Q and the elements in Q that are not in P.
  • A. {2, 9}
  • B. { 9}
  • C. {1, 9}
  • D. {1, 2, 9}

27. 

In the diagram above, T represents the construction of angle …..

  • A. 150
  • B. 300
  • C. 450
  • D. 600
  1. Convert the number 10111.11twoto a mixed number.
  • A. 23 (1/4)
  • B. 23 (3/4)
  • C. 22 (1/4)
  • D. 24 (3/4)
  1. Subtract 14256sevenfrom 20045seven
  • A. 1256seven
  • B. 2456seven
  • C. 1356seven
  • D. 2465seven
  1. The average age of the four female teachers in a school is 40 and the average age of eight male teachers in the school is 25. Calculate the average age of the teachers in the school.
  • A. 20
  • B. 31
  • C. 32
  • D. 30
  1. How many proper and improper subsets are there in the set K = { a, b, c, d, e}?
  • A. 10
  • B. 25
  • C. 32
  • D. 50
  1. Differentiate Cos250 – Sin 250

 

  • A. – ( Sin250 + Cos250)  
  • B. – ( Sec25 + Cot25)  
  • C. – ( Cot25 + Sec25)  
  • D. – ( Sin25 + Sec25)  
  1. The mean of the numbers 13, 16, x, 18, 21, 2x, 35, is 22. Find the value of x
  • A. 16
  • B. 17
  • C. 23
  • D. 25
  1. Find the variance of a group of data whose standard deviation is 12.34 to the nearest whole number.
  • A. 150
  • B. 151
  • C. 152
  • D. 153
  1. Calculate the standard deviation of the following scores 5, 4, 6, 7, and 8
  • A. √2
  • B. √3
  • C. 2
  • D. 3
  1. From a class of 5 girls and 7 boys, a committee consisting of 2 girls and 3 boys is to be formed. How many ways can this be done?
  • A. 350 ways
  • B. 420 ways
  • C. 550 ways
  • D. 720 ways
  1. In how many ways can a committee of 5 be selected from a group of 7 males and 3 females, if the committee must have one female?
  • A. 105ways
  • B. 135 ways
  • C. 210 ways
  • D. 231 ways
  1. A bag contains 7 red and 4 black identical balls. Two balls were picked at random from the bag and replaced each time. Find the probability the two balls were of same colour.
  • A. 54/121
  • B. 65/121
  • C. 29/55
  • D. 27/55
  1. U varies directly as the square root of V when U = 24, V = 9, find the value of V when U = 16.
  • A. 0.32
  • B. 4
  • C. 6
  • D. 0.25
  1. If B varies inversely as c^(1/3) and C = 27 when B = 2, find the value of the constant of proportionality K.
  • A. 3
  • B. 6
  • C. 9
  • D. 12
  1. Find the roots of x3– 19x – 30=0
  • A. -5, 3, and 2
  • B. 5, 3, and -2
  • C. 5, -3 and -2
  • D. -5, -3 and 2
  1. If x is inversely proportional to y and x = 9 when y = 4, find the law containing x and y
  • A. x = 16/y
  • B. x = 36/y
  • C. x = y/36
  • D. x = 13/y

 

43.

44.

  1. If tan θ = 8/15, simplify (Sinθ−Cosθ) / (Sin2θ−Sinθ)
  • A. −119/72
  • B. 119/72
  • C. −7/17
  • D. 8/17
  1. A binary operation * is defined on a set of real numbers by x*y = xyfor all values of x and y, if x * 2 = x, find the possible values of x.
  • A. 0, 2
  • B. 1, 2
  • C. 0, 1
  • D. 2, 2

47. The weights of 15 students in a class are given as 25, 30, 32, 30, 42, 45, 48, 50, 52, 51, 42, 38, 40, and 42. What is the mode of the given data?

  • A. 51
  • B. 45
  • C. 42
  • D. 25

48.

The number of 144 students who registered for mathematics, physics, and chemistry in an examination are shown in the Venn diagram. How many registered for physics and mathematics?

  • A. 16
  • B. 24
  • C. 62
  • D. 4

49.

50.

(√a + √(8a))2 = 54 + b√2, a and b are positive integers. Find the value of a and the value of b.

  • A. a = 24, b = 6
  • B. a = 6, b = 2
  • C. a = 6, b = 24
  • D. a = 2, b = 6