MATHEMATICS 2024
- Evaluate the determinant of the matrix
- A. 20
- B. 25
- C. 30
- D. 35
- 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
- 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
- Find the angle subtended by an arc 33cm long of a circle of diameter 28cm.
- A. 1050
- B. 1150
- C. 1200
- D. 1350
- Solve 16xx = 0.25
- A. -1/2
- B. 1/4
- C. -1/4
- D. 1/2
- 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
- If p * q = 2p + pq + q, find p when ( p * 2) – (p * 1) = 40
- A. 39
- B. 40
- C. 41
- D. 42
- 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
- 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.
- 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
- 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
- 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
- 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
- Differentiate y = (5x + 1)4
- A. 20 (5x + 1)3
- B. 4(5x + 1)3
- C. 5(5x + 1)3
- D. (5x)3
- Simplify (5+√7)/(3+√7)
- A. 17 – √7
- B. 4 – √7
- C. 7 – √7
- D. 15 – √7
- 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
- Find the 7th term of the sequence -10, 50, -250 ………..
- A. 165250
- B. 156250
- C. -156250
- D. -165,250
- 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
- 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
- Find x if = (162+x)/4 = 64x
- A. 3
- B. – 3
- C. 5
- D. – 5
- 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
- Convert the number 10111.11twoto a mixed number.
- A. 23 (1/4)
- B. 23 (3/4)
- C. 22 (1/4)
- D. 24 (3/4)
- Subtract 14256sevenfrom 20045seven
- A. 1256seven
- B. 2456seven
- C. 1356seven
- D. 2465seven
- 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
- 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
- Differentiate Cos250 – Sin 250
- A. – ( Sin250 + Cos250)
- B. – ( Sec25 + Cot25)
- C. – ( Cot25 + Sec25)
- D. – ( Sin25 + Sec25)
- 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
- 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
- Calculate the standard deviation of the following scores 5, 4, 6, 7, and 8
- A. √2
- B. √3
- C. 2
- D. 3
- 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
- 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
- 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
- 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
- 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
- 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
- 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.
- If tan θ = 8/15, simplify (Sinθ−Cosθ) / (Sin2θ−Sinθ)
- A. −119/72
- B. 119/72
- C. −7/17
- D. 8/17
- 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