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 1401:
A sector of a circle has an area of 55 cm2. If the radius of the circle is 10 cm, calculate the angle of the sector. [π = 22/7]
Options:
A) 45
B) 63
C) 75
D) 90
Show Answer
The correct answer is B .
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Question 1402:
If the simple interest on a sum of money invested at 3% per annum for 2 years is ₦123, find the principal.
Options:
A) ₦676.50
B) ₦820
C) ₦1,640
D) ₦4,920
Show Answer
The correct answer is C .
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Question 1403: A sum of money invested at 5% per annum simple interest amounts to $285.20 after 3 years. How long will it take the same sum to amount to $434.00 at 7% per annum simple interest?
Options:
A) 7 years
B) 10 years
C) 5 years
D) 12 years
E) 14 years
Show Answer
The correct answer is B .
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Question 1404: If a rod of length 250cm is measured as 255cm long in error, what is the percentage error in the measurement?
Options:
A) 55
B) 10
C) 5
D) 4
E) 2
Show Answer
The correct answer is E .
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Question 1405:
Differentiate with respect to x.
Options:
A)
B)
C)
D)
Show Answer
The correct answer is D .
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Question 1406: The median of the set of numbers 4, 9, 4, 13, 7, 14, 10, 17 is
Options:
A) 13
B) 7
C)
D)
E) 10
Show Answer
The correct answer is C .
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Question 1407: If U = (s, p, i, e, n, d, o, u, r), X = (s, p, e, n, d) Y = (s, e, n, o, u), Z = (p, n, o, u, r) find X ∩ Y ∪ Z
Options:
A) (p, o, u, r)
B) (s, p, d, r)
C) (p, n, d)
D) (n, d, u)
Show Answer
The correct answer is C .
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Question 1408:
X is due east point of y on a coast. Z is another point on the coast but 6.0km due south of Y. If the distance ZX is 12km, calculate the bearing of Z from X
Options:
A) 240°
B) 150°
C) 60°
D) 270°
Show Answer
The correct answer is A .
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Question 1409:
If 2 = 16 and 4, find the values of x and y.
Options:
A) x = , y =
B) x = , y =
C) x = , y =
D) x = , y =
Show Answer
The correct answer is B .
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Question 1410:
If x + y = 90, simplify (sinx + siny)2−2sinxsiny
Options:
A) 1
B) 0
C) 2
D) -1
Show Answer
The correct answer is A .