- 1. 1. Change the number 7.2 x 101 from standard form to ordinary form
A) 720
B) 0.72
C) 702
D) 72
A) 0.25 x 104
B) 2.5 x 10-4
C) 2.5 x 104
D) 0.25 x 10-4
- 3. 3. Express 24 as a product of its prime factors in index form
A) 22 x 3
B) 2 x 33
C) 23 x 3
D) 22 x 33
- 4. 4. Find the LCM of 504 and 700
A) 12 600
B) 6 200
C) 360
D) 120
- 5. 5. Find the HCF of 504 and 588
A) 108
B) 84
C) 98
D) 48
- 6. 6. Five men built a wall in 10 days, how long would it take 25 men?
A) 5 days
B) 3 days
C) 2 days
D) 50 days
- 7. 7. A woman is paid #7500 for 5 hours. Find her payment for 2 hours
A) #33 000
B) #900
C) #3 000
D) #1 500
- 8. 8. The simple interest on #10 000 for 2 years at the rate of 3% per annum is _____
A) #1 800
B) # l5 000
C) #24 000
D) #600
- 9. 9. The marked price of a pair of school shoes is #1 500. A 10% discount is given for cash payment. What is the cash price of the shoes?
A) #1 350
B) #1 250
C) #1 200
D) #1 560
- 10. 10. The cash price of a television set is #64 000. It was placed on hire purchase with an initial deposit of #24 000 and 12 monthly instalmental payments of #5 200. Calculate the difference between the cash price and the hire purchase of the television set.
A) #60 000
B) #12 500
C) #43 200
D) #22 400
- 11. 11. Cost price = _____
A) Selling price x selling price
B) Profit - selling price
C) Selling price + profit
D) Selling price - profit
- 12. 12. A trader bought 12 electronic stoves at the cost of #3 600 each. If each stove is sold for #4 150, find the total profit made.
A) #6 600
B) #4 150
C) #8 000
D) #12 600
- 13. 13. A piece of land was sold for #250 000 by an agent who charged 5% of the cost of the land. Find the commission and the amount the owner received.
A) #6 650 and #237 500
B) #6 650 and #237 550
C) #12 500 and #155 500
D) #12 500 and #237 500
- 14. 14. 9 x 20/-3 = _____
A) 60
B) 29/-3
C) -60
D) -6
- 15. 15. By prime factorisation, find the square root of 5 625
A) 84
B) 88
C) 81
D) 75
- 16. 16. Find the square root of the fraction √36/81
A) 9/5
B) 6/9
C) 9/6
D) 5/9
- 17. 17. What is the smallest number that would be multiplied by 24 to give a perfect square?
A) 6
B) 3
C) 2
D) 5
- 18. 18. Expand (a + 2) (b - 5)
A) ab - 5a + 2b - 10
B) ab - 7ab -10
C) 2ab - 5a - 10
D) 6ab - 10
A) a2 - 4a - 4
B) a2 + 4a + 4
C) 5a2 + 4
D) a2 + 8a
- 20. 20. Factorise b2 + 2b
A) b(b +2)
B) b(2 + 2)
C) b2(1 + 2)
D) 2(b +1)
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