# Mathematics Trivia Exam Quiz: MCQ!

20 Questions | Total Attempts: 582  Settings  .

• 1.
A bag contains two black balls, three green balls and four red balls. A ball is picked from the bag at random. What is the probability that it is a green?
• A.

0.33

• B.

0.66

• C.

0.99

• D.

1.00

• 2.
The sum of the interior angles of a regular polygon is 30 right angles. How many sides has the polygon?
• A.

34 sides

• B.

30 sides

• C.

26sides

• D.

15 sides

• 3.
The radius of a circle is 10 cm. The length of a chord of the circle is 16 cm. Calculate the distance of the chord from the center of the circle.
• A.

4 cm

• B.

6 cm

• C.

8 cm

• D.

10 cm

• 4.
If Sin x = Cos 50°, then x equals__________
• A.

40°

• B.

45°

• C.

50°

• D.

90°

• E.

130°

• 5.
Given that A = 2.34, P = 1.12 and C = 2. What is APC to two significant figures?
• A.

52.40

• B.

52.0

• C.

5.2

• D.

5.3

• 6.
At a point, 500m from the base of a water tank, the angle of elevation of the top of the tank is 45°. Find the height of the tank.
• A.

250 m

• B.

353 m

• C.

354 m

• D.

500 m

• 7.
In what number base is the addition 465 + 24 + 225 = 1050?
• A.

Ten

• B.

Eight

• C.

Seven

• D.

Six

• 8.
The angle of a sector of a circle radius 10.5cm is 120°. Find the perimeter of the sector.      (Take π = 22/7).
• A.

22cm

• B.

33.5cm

• C.

43cm

• D.

66cm

• 9.
Union of two sets means______________
• A.

Elements in both sets

• B.

Elements in either sets

• C.

Elements common to the two sets

• D.

Elements not in either sets

• 10.
A chord of a circle is 9 cm long. If its distance from the center of the circle is 5 cm, calculate the radius of the circle.
• A.

6.73 cm

• B.

16.13 cm

• C.

16.63 cm

• D.

16.73 cm

• 11.
A labourer spends ₦452:00, which is 80% of his daily wage. What is his daily wage?
• A.

₦460.00

• B.

₦465.00

• C.

₦565.00

• D.

₦570.00

• 12.
The common ratio of G.P. is 2. If the 5th term is greater than the first term by 45, find the 5th term.
• A.

45

• B.

46

• C.

47

• D.

48

• 13.
Find the 8th term of the sequence 3, 6, 12, ...
• A.

384

• B.

300

• C.

280

• D.

250

• 14.
The angle of depression is formed in which of the following cases?
• A.

When looking out

• B.

When looking down

• C.

When looking up

• D.

When you have a line of sight

• 15.
Given that Y is 20m on a bearing of 300° from X, how far West of X is Y?
• A.

8.66m

• B.

10.00m

• C.

17.32m

• D.

24.46m

• 16.
Out of 40 students in a class, 12 are boys and the rest are girls. What is the percentage of girls in the class?
• A.

30%

• B.

40%

• C.

55%

• D.

70%

• 17.
The sum to infinity of a geometric progression is -1/10 and the first term is  -1/8. Find the common ratio of the progression.
• A.

11/5

• B.

21/4

• C.

-1/3

• D.

-1/2

• 18.
The mean of 2, 5, (x+1), (x+2), 7 and 9 is 6. Find the median.
• A.

5.5

• B.

6.0

• C.

6.5

• D.

7.0

• 19.
The lengths of the adjacent sides of a right-angled triangle are x cm and (x-1) cm. If the length of the hypotenuse is √13, find the value of x.
• A.

2

• B.

3

• C.

4

• D.

5

• 20.
A bicycle depreciates in value by about 15% each year. If Regina bought a bicycle for ₦6800 in 1988, find the value 3years later.
• A.

₦4176

• B.

₦6800

• C.

₦8176

• D.

₦20400

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