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 621: Find the sum of the range and the mode of the set of numbers 10, 9, 10, 9, 8, 7, 7, 10, 8, 10, 8, 4, 6, 9, 10, 9, 10, 9, 7, 10, 6, 5
Options:
A) 16
B) 14
C) 12
D) 10
Show Answer
The correct answer is A .
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Question 622: A frustrum of pyramid with square base has its upper and lower sections as squares of sizes 2m and 5m respectively and the distance between them 6m. Find the height of the pyramid from which the frustrum was obtained.
Options:
A) 8.0 m
B) 8.4 m
C) 9.0 m
D) 10.0 m
Show Answer
The correct answer is D .
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Question 623: 22% of the Nigerian Naira is equal to 17% of a foreign currency M. What is the conversion rate of the M to the Naira?
Options:
A) 1M = 1N
B) 1M = 38N
C) 1M = 1N
D) 1M = 384N
Show Answer
The correct answer is C .
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Question 624: Given that tan x = , where 0o d" x d" 90o, Find the value of 2sinx.
Options:
A)
B)
C)
D)
Show Answer
The correct answer is C .
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Question 625:
In the diagram, O is the centre of the circle. If SOQ is a diameter and < PRS is 38, what is the value of < PSQ
Options:
A) 148
B) 104
C) 80
D) 52
Show Answer
The correct answer is D .
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Question 626:
A train moves from P to Q at an average speed of 90km/h and immediately returns from Q to P through the same route at an average speed of 45km/h. Find the average speed for the entire journey
Options:
A) 55.00km/h
B) 60.00km/h
C) 67.50km/h
D) 75.00km/h
Show Answer
The correct answer is B .
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Question 627: Solve the simultaneous equations 2x - 3y + 10 = 10x - 6y = 5
Options:
A) x = 2, y = 3
B) x = , y =
C) x = 2, y = 3
D) x = 2, y = 3
E) x = 2, y = 2
Show Answer
The correct answer is A .
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Question 628:
Let '*' and '^' be two binary operations such that a * b = ab and a ^ b = 2a + b. Find (-4 * 2) ^ (7 * -1).
Options:
A) -49
B) 64
C) 113
D) 15
Show Answer
The correct answer is D .
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Question 629: Cos 65o has the same value as
Options:
A) Sin 65o
B) Cos 25o
C) Cos 115o
D) Cos 205o
E) Cos 295o
Show Answer
The correct answer is E .
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Question 630:
In the diagram, POS and ROT are straight lines, OPQR is a parallelogram. |OS| = |OT| and ∠OST = 50o. Calculate ∠OPQ.
Options:
A) 160o
B) 140o
C) 120o
D) 100o
Show Answer
The correct answer is D .