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 671: What is the mean deviation of x, 2x, x+1 and 3x. If their mean is 2?
Options:
A) 0.5
B) 1.0
C) 1.5
D) 2.0
Show Answer
The correct answer is A .
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Question 672: Given that p:q = : and q:r = , find p:r
Options:
A) 4:105
B) 7:15
C) 20:21
D) 2:35
E) 3:20
Show Answer
The correct answer is C .
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Question 673: Evaluate Log28 + Log216 - Log24
Options:
A) 3
B) 4
C) 5
D) 6
Show Answer
The correct answer is C .
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Question 674: Simplify
Options:
A) 2(x - 9)
B) 2(9 + x)
C) 81 - x2
D) -2(x - 9)
Show Answer
The correct answer is D .
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Question 675: A market woman sells oil in cylindrical tins 10cm deep and 6cm in diameter at ₦15.00 each. If she bought a full cylindrical jug 18cm deep and 10cm in diameter for ₦50.00, how much did she make by selling all the oil?
Options:
A) ₦62.50
B) ₦35.00
C) ₦31.00
D) ₦25.00
Show Answer
The correct answer is D .
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Question 676: If sine x equals cosine x, what is x in radians?
Options:
A)
B)
C)
D)
E)
Show Answer
The correct answer is C .
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Question 677:
Find the value of to 3 significant figures.
Options:
A) 46.2
B) 43.1
C) 534
D) 431
Show Answer
The correct answer is B .
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Question 678:
A rectangle has one side that is 6 cm shorter than the other. The area of the rectangle will increase by 68 cm if we add 2 cm to each side of the rectangle. Find the length of the shorter side.
Options:
A) 15 cm
B) 19 cm
C) 13 cm
D) 21 cm
Show Answer
The correct answer is C .
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Question 679: If the sum of the first two terms of a G.P. is 3, and the sum of the second and the third terms is -6, find the sum of the first term and the common ratio
Options:
A) -2
B) -3
C) -5
D) 5
Show Answer
The correct answer is C .
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Question 680: Solve the following equation equation for x2 + + = 0
Options:
A) r2
B)
C) -
D) 1 - r
Show Answer
The correct answer is C .