Mathematics (2018) | Study Mode

Join Discuss Share to WhatsApp
Question 41
Mathematics (2018) Q 41 image
A
-5.3
MATHEMATICS A 9 image
B
0.5
MATHEMATICS B 9 image
C
3
MATHEMATICS C 9 image
D
8
MATHEMATICS D 9 image
Explanation

The minimum value is the lowest value of the curve on y axis which gives a value of -5.3


Correct option: A
Join Discuss Share to WhatsApp
Question 42
A
-1 1\(\frac{1}{2}\)
B
-1
C
1
D
5
Explanation

log\(_2\) 8 log\(_3\) \(\frac{1}{9}\)

= log \(_2\) 2\(^3\) log\(_3\) 9\(^{-1}\)

= log\(_2\) 2\(^3\) log\(_3\) 3\(^{-2}\)

Based on law of logarithm

= 3 log\(_2\) 2 (-2 log\(_3\) 3)

But log\(_2\) 2 = 1,

log\(_3\) 3 = 1

So, = 3 + 2

= 5


Correct option: D
Join Discuss Share to WhatsApp
Question 43
A
Second only
B
Third only
C
Fourth only
D
First and third only
Explanation

First quadrant: Sin, Cos and Tan are all positive

Second quadrant: Sin is positive, Cos is negative and Tan is negative

Third quadrant: Tan is positive, Sin is negative and Cos is negative

Fourth quadrant: Cos is positive, Sin is negative and Tan is negative

The correct option is the third quadrant only where Tan is positive and Sin is negative


Correct option: B
Join Discuss Share to WhatsApp
Question 44
Mathematics (2018) Q 44 image
A
36
MATHEMATICS A 9 image
B
40
MATHEMATICS B 9 image
C
44
MATHEMATICS C 9 image
D
50
MATHEMATICS D 9 image
Explanation

The total number of students is f = 3 + 4 + 5 + 6 + 7 + 6 + 5 + 4

= 40


Correct option: B
Join Discuss Share to WhatsApp
Question 45
Mathematics (2018) Q 45 image
A
2
MATHEMATICS A 9 image
B
3
MATHEMATICS B 9 image
C
4
MATHEMATICS C 9 image
D
7
MATHEMATICS D 9 image
Explanation

A = (p, q, r, t, u, v)

B = (r, s, t, u)

A U B = Elements in both A and B = (p, q, r, s, t, u, v)

(A U B)1 = elements in the universal set E but not in (A U B)= (w, x, y, z)

n(A U B) 1 = number of the elements in (A U B)1 = 4


Correct option: C
Join Discuss Share to WhatsApp
Question 46
A
A straight line of length 4cm
B
a circle of radius 4cm
C
perpendicular to point P at 4cm
D
a circle of diameter 4cm
Explanation

Locus is the path traced at by a point which moves in accordance with a certain law. It is also the set of all possible position occupied by an object The path traced from all possible location of 4cm from a given point P form a circle of radius 4cm with centre P.


Correct option: B
Join Discuss Share to WhatsApp
Question 47
A
14\(^o\)
B
21\(^o\)
C
32\(^o\)
D
39\(^o\)
Explanation

Sin(5x - 28) = Cos(3x - 50)..i

But Sin = Cos(90 - )

So Sin(5x - 28) = Cos(90 - [5x - 28])

Sin(5x - 28) = Cos(90 - 5x + 28)

Sin(5x - 28) = Cos(118 - 5x)ii

Combining i and ii

Cos(3x - 50) = Cos(118 - 5x)

3x - 50 = 118 - 5x

Collecting the like terms

3x + 5x = 118 + 50

8x = 168

x = \(\frac{168}{8}\)

x = 21\(^o\)

Answer is B


Correct option: B
Join Discuss Share to WhatsApp
Question 48
A
20
B
19
C
17
D
15
Explanation

Prime numbers are numbers that has only two factors (i.e 1 and itself). They are numbers that are only divisible by 1 and their selves. First four Prime numbers greater than 10 are 11, 13, 17 and 19

Average = sum of numbers / number

= \(frac{(11 + 13 + 17 + 19)}{4}\)

= \(\frac{60}{4}\)

= 15


Correct option: D
Join Discuss Share to WhatsApp
Question 49
Mathematics (2018) Q 49 image
A
4
MATHEMATICS A 9 image
B
5
MATHEMATICS B 9 image
C
6
MATHEMATICS C 9 image
D
7
MATHEMATICS D 9 image
Explanation

The modal age is the age with the highest frequency, and that is age 5 years with f of 7


Correct option: B
Join Discuss Share to WhatsApp
Question 50
A
0.040
B
0.049
C
0.050
D
0.49
Explanation

0.04945 to 2s.f is 0.05


Correct option: C

Try this quiz in in E-test/CBT Mode
switch to Mathematics (2018) in CBT Mode

Previous Page Next Page
Question Map
Quiz link
Share Mathematics (2018) with your audience
Share to WhatsApp CBT mode Study mode copy link
​​​Help keep QUIZZERWEB running! 
A donation makes a contribution towards the costs, the time and effort that's going on in building and improving this platform.
 
Donate
​​​sponsored
Are you a writer, proof-reader, interpreter, teacher, student or just someone who works in Yorùbá Language? 
 
Translate those figures and numbers to words in standard Yoruba Language at YorubaNumeral.com.ng at no cost. 
 
It also aids learning the yoruba numbering system by providing detailed explanation for each number translated up to 25 billion. 
 
English to Yorùbá Numeral Translator