Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.
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Question 11:
A surveyor walks 500m up a hill which slopes at an angle of 30. Calculate the vertical height through which he rises
Options:
A) 252m
B) 500m
C) 250m
D) 255m
Show Answer
The correct answer is C .
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Question 12: Simplify 4 -
Options:
A) 2
B) -2 -
C) -2 +
D) 2 -
Show Answer
The correct answer is D .
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Question 13: An sided figure has n diagonals, find the number n of diagonals for a 25 sided figure
Options:
A) 8
B) 7
C) 6
D) 9
E) 10
Show Answer
The correct answer is B .
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Question 14:
The angle of a sector of acircle, radius 10.5cm, is 48°,Calculate the perimeter of the sector
Options:
A) 8.8cm
B) 25.4cm
C) 25.6cm
D) 29.8cm
Show Answer
The correct answer is D .
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Question 15:
A machine valued at N20,000 depreciates by 10% every year. What will be the value of the machine at the end of two years?
Options:
A) N16,200
B) N14,200
C) N12,000
D) N8,000
Show Answer
The correct answer is A .
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Question 16: If 5(x + 2y) = 5 and 4(x + 3y) = 16, find 3(x + y)
Options:
A) 7
B) 1
C) 3
D) 27
Show Answer
The correct answer is B .
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Question 17: If x = (all prime factors of 44) and y = (all prime factors of 60), the elements of X ∪ Y and X ∩ Y respectively are
Options:
A) (2, 4, 3, 5, 11) and (4)
B) (4, 3, 5, 11) and (3, 4)
C) (2, 5, 11) and (2)
D) (2, 3, 5, 11) and (2)
Show Answer
The correct answer is D .
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Question 18: What is the value of k if the mid-point of the line joining (1 - k, - 4) and (2, k + 1) is (-k , k)?
Options:
A) -3
B) -1
C) -4
D) -2
Show Answer
The correct answer is A .
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Question 19: Make Q the subject of formula when
Options:
A)
B)
C)
D)
Show Answer
The correct answer is A .
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Question 20: Let p be a probability function on set S, where S = (a1, a2, a3, a4). Find P(a1) if P(a2) = , p(a3) = and p(a4) =
Options:
A)
B)
C)
D)
Show Answer
The correct answer is D .