- 1. Convert 12ten to base six
A) None
B) 20six
C) 2000six
D) 200six
- 2. Convert 128ten to base eight
A) 200eight
B) 2000eight
C) 002eight
D) 20eight
- 3. Convert 29ten to a number in base two
A) 11101two
B) 11111two
C) 10111two
D) 01111two
- 4. Find the value of 1111 x 1001 in base two
A) 11111111two
B) 10000011two
C) 11110001two
D) 10000111two
- 5. Approximate 8.9012 to 3s.f
A) 8.901
B) 8.0
C) 8.9012
D) 8.90
- 6. Round off 456.78 to 1d.p
A) 450
B) 400
C) 456.7
D) 456.8
- 7. Change 16 to a number in base four
A) 100four
B) 10four
C) 10000four
D) 1000four
- 8. Factorize x² + 5x + 6=0
A) None
B) x= 3 or 2
C) x= -3 or -2
D) x=3 or -2
A) k=2 or -5
B) k=-2 or -5
C) k=-2 or 5
D) k=2 or 5
- 10. The study of triangles in relation to their sides and angles is
A) Trigonometry
B) Tangent
C) None
D) Hypotenuse
- 11. If r²=3.3² + 5.6², find r
A) 6.7
B) 6
C) 6.5
D) 6.2
- 12. The Volume of the curved surface area of a cone is
A) πr²h
B) πrl²
C) πrl²
D) πrl
- 13. An arc subtends an angle of 105⁰ at the center of a circle of radius 6cm. Find the length of the arc if π is 22/7
A) 1.1cm
B) 11cm
C) 0.11cm
D) 11.5cm
- 14. Which of the following is the volume of a cuboid
A) l³
B) 6l²
C) lbh²
D) lbh
- 15. Which of the following is a closed statement
A) x is an even number
B) None of the above
C) What is your name
D) 3 is an odd number
- 16. Which is the following is an open statement
A) Follow me
B) Chemistry is a science subject
C) 3 is an odd number
D) The niger is a famous European river
- 17. If z²=12² + 5², find z
A) 13.1
B) 11
C) 12
D) 13
- 18. What is the formula of the surface area of a cone
A) πr² + πrh
B) πrl + πr²
C) πrl + πr²
D) πrh+ πr²
- 19. At a point 20m from the base of a water tank the angle of elevation from the top of a tank is 45⁰. What is the height of the tank
A) 25m
B) 20m
C) 10m
D) 15m
- 20. Solve the question
x + 2y=5
x + 3y=8
A) y=3, x=1
B) y=-3, x=1
C) y=3, x=-1
D) y=-3, x=-1
A) 2033
B) 2023.90115
C) 2000
D) 2033•901163
A) 2 mod 8
B) 2 mod 7
C) 2 mod 5
D) 2 mod 6
- 23. Convert 101.101two to base ten
A) 56.25ten
B) 5.605ten
C) 5.625ten
D) 0.5625ten
- 24. Convert 15ten to a number in base two
A) 1110two
B) 1101two
C) 1011two
D) 1111two
- 25. If 1 packet of sugar costs x naira what will be the cost of 20 packets
A) 20x²naira
B) 20naira
C) None of the above
D) 20xnaira
- 26. 3(5x - 2)=11x, find x
A) 1/2
B) 2/3
C) 3/2
D) 5/2
- 27. Evaluate 34.83 × 5.427
A) 188
B) 188.9
C) 189
D) 189.1
- 28. A car petrol is 0.8m long,25cm wide and 20cm deep. How many litres of petrol can it hold?
A) 4000litres
B) 40litres
C) 40000litres
D) 400litres
- 29. Calculate the volume of a cone of base diameter 14cm and height 5cm. Take π to be 22/7
A) 266cm³
B) 200cm³
C) 256.67cm³
D) 250cm³
- 30. What angle does an arc 6.6cm in length subtend at the centre of a circle of radius 14cm?
A) 25⁰
B) 28⁰
C) 27⁰
D) 23⁰
- 31. A sector of 80⁰ plus removed from a circle of radius 12cm. What area of the circle is left? Use π=22/7
A) 360cm²
B) 372cm²
C) 352cm²
D) 342cm²
- 32. If the Volume of a rectangular based pyramid is 70cm³ and it's base area is 28cm², calculate the height of the pyramid.
A) 7.5cm
B) 7.2cm
C) 7.9cm
D) 7cm
- 33. If C varies directly as n and C=5 when n=20, find the formula connecting c and n
A) C=1/4n
B) C=1/2n
C) C=4n
D) C=1/8n
- 34. "Chemistry is an easy subject" can be categorized under what kind of statement
A) Open
B) Neither
C) Closed
- 35. From the diagram above, list the elements of
A U B
A) (2,3,4,6,7,8,10)
B) None of the above
C) (2,3,5,7,8,9)
D) (2,3,4,5,6,7,8,9)
- 36. A collection of well defined objects is known as
A) Sets
B) Null set
C) Empty set
D) Venn Diagram
- 37. The sets of all objects under discussion is known as
A) Subset
B) Infinite Set
C) None of the above
D) Universal set
A) 3/8
B) 5/8
C) 8/5
D) 15/8
- 39. The sign ' is referred to as
A) Union
B) Intersection
C) None of the above
D) Complement
- 40. Factorize x² + 8x - 20
A) None of the above
B) (x + 10)(x - 2)
C) (x - 10)(x - 2)
D) (x + 10)(x + 2)
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